nuke trailing whitespaces in the yaffs code

SVN-Revision: 11277

1 files changed, 414 insertions, 414 deletions

diff --git a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_guts.c b/target/linux/generic-2.6/files/fs/yaffs2/yaffs_guts.c
index 006820c713..2ab8146913 100644
--- a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_guts.c
+++ b/target/linux/generic-2.6/files/fs/yaffs2/yaffs_guts.c
@@ -140,71 +140,71 @@ static void yaffs_AddrToChunk(yaffs_Device *dev, loff_t addr, __u32 *chunk, __u3
 		YBUG();
 }
 
-/* Function to return the number of shifts for a power of 2 greater than or equal 
+/* Function to return the number of shifts for a power of 2 greater than or equal
  * to the given number
  * Note we don't try to cater for all possible numbers and this does not have to
  * be hellishly efficient.
  */
- 
+
 static __u32 ShiftsGE(__u32 x)
 {
 	int extraBits;
 	int nShifts;
-	
+
 	nShifts = extraBits = 0;
-	
+
 	while(x>1){
 		if(x & 1) extraBits++;
 		x>>=1;
 		nShifts++;
 	}
 
-	if(extraBits) 
+	if(extraBits)
 		nShifts++;
-		
+
 	return nShifts;
 }
 
 /* Function to return the number of shifts to get a 1 in bit 0
  */
- 
+
 static __u32 ShiftDiv(__u32 x)
 {
 	int nShifts;
-	
+
 	nShifts =  0;
-	
+
 	if(!x) return 0;
-	
+
 	while( !(x&1)){
 		x>>=1;
 		nShifts++;
 	}
-		
+
 	return nShifts;
 }
 
 
 
-/* 
+/*
  * Temporary buffer manipulations.
  */
 
-static int yaffs_InitialiseTempBuffers(yaffs_Device *dev)	
+static int yaffs_InitialiseTempBuffers(yaffs_Device *dev)
 {
 	int i;
 	__u8 *buf = (__u8 *)1;
-		
+
 	memset(dev->tempBuffer,0,sizeof(dev->tempBuffer));
-		
+
 	for (i = 0; buf && i < YAFFS_N_TEMP_BUFFERS; i++) {
 		dev->tempBuffer[i].line = 0;	/* not in use */
 		dev->tempBuffer[i].buffer = buf =
 		    YMALLOC_DMA(dev->nDataBytesPerChunk);
 	}
-		
+
 	return buf ? YAFFS_OK : YAFFS_FAIL;
-	
+
 }
 
 static __u8 *yaffs_GetTempBuffer(yaffs_Device * dev, int lineNo)
@@ -337,7 +337,7 @@ static Y_INLINE void yaffs_ClearChunkBit(yaffs_Device * dev, int blk, int chunk)
 static Y_INLINE void yaffs_SetChunkBit(yaffs_Device * dev, int blk, int chunk)
 {
 	__u8 *blkBits = yaffs_BlockBits(dev, blk);
-	
+
 	yaffs_VerifyChunkBitId(dev,blk,chunk);
 
 	blkBits[chunk / 8] |= (1 << (chunk & 7));
@@ -375,16 +375,16 @@ static int yaffs_CountChunkBits(yaffs_Device * dev, int blk)
 				n++;
 			x >>=1;
 		}
-			
+
 		blkBits++;
 	}
 	return n;
 }
 
-/* 
+/*
  * Verification code
  */
- 
+
 static int yaffs_SkipVerification(yaffs_Device *dev)
 {
 	return !(yaffs_traceMask & (YAFFS_TRACE_VERIFY | YAFFS_TRACE_VERIFY_FULL));
@@ -417,14 +417,14 @@ static void yaffs_VerifyBlock(yaffs_Device *dev,yaffs_BlockInfo *bi,int n)
 {
 	int actuallyUsed;
 	int inUse;
-	
+
 	if(yaffs_SkipVerification(dev))
 		return;
-		
+
 	/* Report illegal runtime states */
 	if(bi->blockState <0 || bi->blockState >= YAFFS_NUMBER_OF_BLOCK_STATES)
 		T(YAFFS_TRACE_VERIFY,(TSTR("Block %d has undefined state %d"TENDSTR),n,bi->blockState));
-		
+
 	switch(bi->blockState){
 	 case YAFFS_BLOCK_STATE_UNKNOWN:
 	 case YAFFS_BLOCK_STATE_SCANNING:
@@ -432,42 +432,42 @@ static void yaffs_VerifyBlock(yaffs_Device *dev,yaffs_BlockInfo *bi,int n)
 		T(YAFFS_TRACE_VERIFY,(TSTR("Block %d has bad run-state %s"TENDSTR),
 		n,blockStateName[bi->blockState]));
 	}
-	
+
 	/* Check pages in use and soft deletions are legal */
-	
+
 	actuallyUsed = bi->pagesInUse - bi->softDeletions;
-	
+
 	if(bi->pagesInUse < 0 || bi->pagesInUse > dev->nChunksPerBlock ||
 	   bi->softDeletions < 0 || bi->softDeletions > dev->nChunksPerBlock ||
 	   actuallyUsed < 0 || actuallyUsed > dev->nChunksPerBlock)
 		T(YAFFS_TRACE_VERIFY,(TSTR("Block %d has illegal values pagesInUsed %d softDeletions %d"TENDSTR),
 		n,bi->pagesInUse,bi->softDeletions));
-	
-		
+
+
 	/* Check chunk bitmap legal */
 	inUse = yaffs_CountChunkBits(dev,n);
 	if(inUse != bi->pagesInUse)
 		T(YAFFS_TRACE_VERIFY,(TSTR("Block %d has inconsistent values pagesInUse %d counted chunk bits %d"TENDSTR),
 			n,bi->pagesInUse,inUse));
-	
+
 	/* Check that the sequence number is valid.
-	 * Ten million is legal, but is very unlikely 
+	 * Ten million is legal, but is very unlikely
 	 */
-	if(dev->isYaffs2 && 
+	if(dev->isYaffs2 &&
 	   (bi->blockState == YAFFS_BLOCK_STATE_ALLOCATING || bi->blockState == YAFFS_BLOCK_STATE_FULL) &&
 	   (bi->sequenceNumber < YAFFS_LOWEST_SEQUENCE_NUMBER || bi->sequenceNumber > 10000000 ))
 		T(YAFFS_TRACE_VERIFY,(TSTR("Block %d has suspect sequence number of %d"TENDSTR),
 		n,bi->sequenceNumber));
-		
+
 }
 
 static void yaffs_VerifyCollectedBlock(yaffs_Device *dev,yaffs_BlockInfo *bi,int n)
 {
 	yaffs_VerifyBlock(dev,bi,n);
-	
+
 	/* After collection the block should be in the erased state */
 	/* TODO: This will need to change if we do partial gc */
-	
+
 	if(bi->blockState != YAFFS_BLOCK_STATE_EMPTY){
 		T(YAFFS_TRACE_ERROR,(TSTR("Block %d is in state %d after gc, should be erased"TENDSTR),
 			n,bi->blockState));
@@ -479,14 +479,14 @@ static void yaffs_VerifyBlocks(yaffs_Device *dev)
 	int i;
 	int nBlocksPerState[YAFFS_NUMBER_OF_BLOCK_STATES];
 	int nIllegalBlockStates = 0;
-	
+
 
 	if(yaffs_SkipVerification(dev))
 		return;
 
 	memset(nBlocksPerState,0,sizeof(nBlocksPerState));
 
-		
+
 	for(i = dev->internalStartBlock; i <= dev->internalEndBlock; i++){
 		yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev,i);
 		yaffs_VerifyBlock(dev,bi,i);
@@ -495,12 +495,12 @@ static void yaffs_VerifyBlocks(yaffs_Device *dev)
 			nBlocksPerState[bi->blockState]++;
 		else
 			nIllegalBlockStates++;
-					
+
 	}
-	
+
 	T(YAFFS_TRACE_VERIFY,(TSTR(""TENDSTR)));
 	T(YAFFS_TRACE_VERIFY,(TSTR("Block summary"TENDSTR)));
-	
+
 	T(YAFFS_TRACE_VERIFY,(TSTR("%d blocks have illegal states"TENDSTR),nIllegalBlockStates));
 	if(nBlocksPerState[YAFFS_BLOCK_STATE_ALLOCATING] > 1)
 		T(YAFFS_TRACE_VERIFY,(TSTR("Too many allocating blocks"TENDSTR)));
@@ -509,17 +509,17 @@ static void yaffs_VerifyBlocks(yaffs_Device *dev)
 		T(YAFFS_TRACE_VERIFY,
 		  (TSTR("%s %d blocks"TENDSTR),
 		  blockStateName[i],nBlocksPerState[i]));
-	
+
 	if(dev->blocksInCheckpoint != nBlocksPerState[YAFFS_BLOCK_STATE_CHECKPOINT])
 		T(YAFFS_TRACE_VERIFY,
 		 (TSTR("Checkpoint block count wrong dev %d count %d"TENDSTR),
 		 dev->blocksInCheckpoint, nBlocksPerState[YAFFS_BLOCK_STATE_CHECKPOINT]));
-		 
+
 	if(dev->nErasedBlocks != nBlocksPerState[YAFFS_BLOCK_STATE_EMPTY])
 		T(YAFFS_TRACE_VERIFY,
 		 (TSTR("Erased block count wrong dev %d count %d"TENDSTR),
 		 dev->nErasedBlocks, nBlocksPerState[YAFFS_BLOCK_STATE_EMPTY]));
-		 
+
 	if(nBlocksPerState[YAFFS_BLOCK_STATE_COLLECTING] > 1)
 		T(YAFFS_TRACE_VERIFY,
 		 (TSTR("Too many collecting blocks %d (max is 1)"TENDSTR),
@@ -537,14 +537,14 @@ static void yaffs_VerifyObjectHeader(yaffs_Object *obj, yaffs_ObjectHeader *oh,
 {
 	if(yaffs_SkipVerification(obj->myDev))
 		return;
-		
+
 	if(!(tags && obj && oh)){
 	 	T(YAFFS_TRACE_VERIFY,
 		 		(TSTR("Verifying object header tags %x obj %x oh %x"TENDSTR),
 		 		(__u32)tags,(__u32)obj,(__u32)oh));
 		return;
 	}
-	
+
 	if(oh->type <= YAFFS_OBJECT_TYPE_UNKNOWN ||
 	   oh->type > YAFFS_OBJECT_TYPE_MAX)
 	 	T(YAFFS_TRACE_VERIFY,
@@ -559,25 +559,25 @@ static void yaffs_VerifyObjectHeader(yaffs_Object *obj, yaffs_ObjectHeader *oh,
 
 	/*
 	 * Check that the object's parent ids match if parentCheck requested.
-	 * 
+	 *
 	 * Tests do not apply to the root object.
 	 */
-	
+
 	if(parentCheck && tags->objectId > 1 && !obj->parent)
 	 	T(YAFFS_TRACE_VERIFY,
 		 (TSTR("Obj %d header mismatch parentId %d obj->parent is NULL"TENDSTR),
 	 	 tags->objectId, oh->parentObjectId));
-		
-	
+
+
 	if(parentCheck && obj->parent &&
-	   oh->parentObjectId != obj->parent->objectId && 
+	   oh->parentObjectId != obj->parent->objectId &&
 	   (oh->parentObjectId != YAFFS_OBJECTID_UNLINKED ||
 	    obj->parent->objectId != YAFFS_OBJECTID_DELETED))
 	 	T(YAFFS_TRACE_VERIFY,
 		 (TSTR("Obj %d header mismatch parentId %d parentObjectId %d"TENDSTR),
 	 	 tags->objectId, oh->parentObjectId, obj->parent->objectId));
-		
-	
+
+
 	if(tags->objectId > 1 && oh->name[0] == 0) /* Null name */
 		T(YAFFS_TRACE_VERIFY,
 		(TSTR("Obj %d header name is NULL"TENDSTR),
@@ -614,12 +614,12 @@ static int yaffs_VerifyTnodeWorker(yaffs_Object * obj, yaffs_Tnode * tn,
 			int i;
 			yaffs_ExtendedTags tags;
 			__u32 objectId = obj->objectId;
-			
+
 			chunkOffset <<=  YAFFS_TNODES_LEVEL0_BITS;
-			
+
 			for(i = 0; i < YAFFS_NTNODES_LEVEL0; i++){
 				__u32 theChunk = yaffs_GetChunkGroupBase(dev,tn,i);
-				
+
 				if(theChunk > 0){
 					/* T(~0,(TSTR("verifying (%d:%d) %d"TENDSTR),tags.objectId,tags.chunkId,theChunk)); */
 					yaffs_ReadChunkWithTagsFromNAND(dev,theChunk,NULL, &tags);
@@ -651,13 +651,13 @@ static void yaffs_VerifyFile(yaffs_Object *obj)
 	yaffs_ExtendedTags tags;
 	yaffs_Tnode *tn;
 	__u32 objectId;
-	
+
 	if(obj && yaffs_SkipVerification(obj->myDev))
 		return;
-	
+
 	dev = obj->myDev;
 	objectId = obj->objectId;
-	
+
 	/* Check file size is consistent with tnode depth */
 	lastChunk =  obj->variant.fileVariant.fileSize / dev->nDataBytesPerChunk + 1;
 	x = lastChunk >> YAFFS_TNODES_LEVEL0_BITS;
@@ -666,23 +666,23 @@ static void yaffs_VerifyFile(yaffs_Object *obj)
 		x >>= YAFFS_TNODES_INTERNAL_BITS;
 		requiredTallness++;
 	}
-	
+
 	actualTallness = obj->variant.fileVariant.topLevel;
-	
+
 	if(requiredTallness > actualTallness )
 		T(YAFFS_TRACE_VERIFY,
 		(TSTR("Obj %d had tnode tallness %d, needs to be %d"TENDSTR),
 		 obj->objectId,actualTallness, requiredTallness));
-	
-	
-	/* Check that the chunks in the tnode tree are all correct. 
+
+
+	/* Check that the chunks in the tnode tree are all correct.
 	 * We do this by scanning through the tnode tree and
 	 * checking the tags for every chunk match.
 	 */
 
 	if(yaffs_SkipNANDVerification(dev))
 		return;
-		
+
 	for(i = 1; i <= lastChunk; i++){
 		tn = yaffs_FindLevel0Tnode(dev, &obj->variant.fileVariant,i);
 
@@ -707,14 +707,14 @@ static void yaffs_VerifyDirectory(yaffs_Object *obj)
 {
 	if(obj && yaffs_SkipVerification(obj->myDev))
 		return;
-	
+
 }
 
 static void yaffs_VerifyHardLink(yaffs_Object *obj)
 {
 	if(obj && yaffs_SkipVerification(obj->myDev))
 		return;
-		
+
 	/* Verify sane equivalent object */
 }
 
@@ -722,7 +722,7 @@ static void yaffs_VerifySymlink(yaffs_Object *obj)
 {
 	if(obj && yaffs_SkipVerification(obj->myDev))
 		return;
-		
+
 	/* Verify symlink string */
 }
 
@@ -735,32 +735,32 @@ static void yaffs_VerifySpecial(yaffs_Object *obj)
 static void yaffs_VerifyObject(yaffs_Object *obj)
 {
 	yaffs_Device *dev;
-	
+
 	__u32 chunkMin;
 	__u32 chunkMax;
-	
+
 	__u32 chunkIdOk;
 	__u32 chunkIsLive;
-	
+
 	if(!obj)
 		return;
-	
+
 	dev = obj->myDev;
-	
+
 	if(yaffs_SkipVerification(dev))
 		return;
-		
+
 	/* Check sane object header chunk */
-	
+
 	chunkMin = dev->internalStartBlock * dev->nChunksPerBlock;
 	chunkMax = (dev->internalEndBlock+1) * dev->nChunksPerBlock - 1;
-	
+
 	chunkIdOk = (obj->chunkId >= chunkMin && obj->chunkId <= chunkMax);
-	chunkIsLive = chunkIdOk && 
-			yaffs_CheckChunkBit(dev, 
+	chunkIsLive = chunkIdOk &&
+			yaffs_CheckChunkBit(dev,
 					    obj->chunkId / dev->nChunksPerBlock,
 					    obj->chunkId % dev->nChunksPerBlock);
-	if(!obj->fake && 
+	if(!obj->fake &&
 	    (!chunkIdOk || !chunkIsLive)) {
 	   T(YAFFS_TRACE_VERIFY,
 	   (TSTR("Obj %d has chunkId %d %s %s"TENDSTR),
@@ -768,36 +768,36 @@ static void yaffs_VerifyObject(yaffs_Object *obj)
 	   chunkIdOk ? "" : ",out of range",
 	   chunkIsLive || !chunkIdOk ? "" : ",marked as deleted"));
 	}
-	
+
 	if(chunkIdOk && chunkIsLive &&!yaffs_SkipNANDVerification(dev)) {
 		yaffs_ExtendedTags tags;
 		yaffs_ObjectHeader *oh;
 		__u8 *buffer = yaffs_GetTempBuffer(dev,__LINE__);
-		
+
 		oh = (yaffs_ObjectHeader *)buffer;
-		
+
 		yaffs_ReadChunkWithTagsFromNAND(dev, obj->chunkId,buffer, &tags);
-		
+
 		yaffs_VerifyObjectHeader(obj,oh,&tags,1);
-		
+
 		yaffs_ReleaseTempBuffer(dev,buffer,__LINE__);
 	}
-	
+
 	/* Verify it has a parent */
 	if(obj && !obj->fake &&
 	   (!obj->parent || obj->parent->myDev != dev)){
 	   T(YAFFS_TRACE_VERIFY,
 	   (TSTR("Obj %d has parent pointer %p which does not look like an object"TENDSTR),
-	   obj->objectId,obj->parent));	   
+	   obj->objectId,obj->parent));
 	}
-	
+
 	/* Verify parent is a directory */
 	if(obj->parent && obj->parent->variantType != YAFFS_OBJECT_TYPE_DIRECTORY){
 	   T(YAFFS_TRACE_VERIFY,
 	   (TSTR("Obj %d's parent is not a directory (type %d)"TENDSTR),
-	   obj->objectId,obj->parent->variantType));	   
+	   obj->objectId,obj->parent->variantType));
 	}
-	
+
 	switch(obj->variantType){
 	case YAFFS_OBJECT_TYPE_FILE:
 		yaffs_VerifyFile(obj);
@@ -818,11 +818,11 @@ static void yaffs_VerifyObject(yaffs_Object *obj)
 	default:
 		T(YAFFS_TRACE_VERIFY,
 		(TSTR("Obj %d has illegaltype %d"TENDSTR),
-		obj->objectId,obj->variantType));	   
+		obj->objectId,obj->variantType));
 		break;
 	}
-	
-	
+
+
 }
 
 static void yaffs_VerifyObjects(yaffs_Device *dev)
@@ -833,9 +833,9 @@ static void yaffs_VerifyObjects(yaffs_Device *dev)
 
 	if(yaffs_SkipVerification(dev))
 		return;
-	
+
 	/* Iterate through the objects in each hash entry */
-	 
+
 	 for(i = 0; i <  YAFFS_NOBJECT_BUCKETS; i++){
 	 	list_for_each(lh, &dev->objectBucket[i].list) {
 			if (lh) {
@@ -851,7 +851,7 @@ static void yaffs_VerifyObjects(yaffs_Device *dev)
 /*
  *  Simple hash function. Needs to have a reasonable spread
  */
- 
+
 static Y_INLINE int yaffs_HashFunction(int n)
 {
 	n = abs(n);
@@ -861,7 +861,7 @@ static Y_INLINE int yaffs_HashFunction(int n)
 /*
  * Access functions to useful fake objects
  */
- 
+
 yaffs_Object *yaffs_Root(yaffs_Device * dev)
 {
 	return dev->rootDir;
@@ -876,7 +876,7 @@ yaffs_Object *yaffs_LostNFound(yaffs_Device * dev)
 /*
  *  Erased NAND checking functions
  */
- 
+
 int yaffs_CheckFF(__u8 * buffer, int nBytes)
 {
 	/* Horrible, slow implementation */
@@ -898,10 +898,10 @@ static int yaffs_CheckChunkErased(struct yaffs_DeviceStruct *dev,
 	int result;
 
 	result = yaffs_ReadChunkWithTagsFromNAND(dev, chunkInNAND, data, &tags);
-	
+
 	if(tags.eccResult > YAFFS_ECC_RESULT_NO_ERROR)
 		retval = YAFFS_FAIL;
-		
+
 
 	if (!yaffs_CheckFF(data, dev->nDataBytesPerChunk) || tags.chunkUsed) {
 		T(YAFFS_TRACE_NANDACCESS,
@@ -1008,13 +1008,13 @@ static int yaffs_WriteNewChunkWithTagsToNAND(struct yaffs_DeviceStruct *dev,
 /*
  * Block retiring for handling a broken block.
  */
- 
+
 static void yaffs_RetireBlock(yaffs_Device * dev, int blockInNAND)
 {
 	yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, blockInNAND);
 
 	yaffs_InvalidateCheckpoint(dev);
-	
+
 	yaffs_MarkBlockBad(dev, blockInNAND);
 
 	bi->blockState = YAFFS_BLOCK_STATE_DEAD;
@@ -1028,7 +1028,7 @@ static void yaffs_RetireBlock(yaffs_Device * dev, int blockInNAND)
  * Functions for robustisizing TODO
  *
  */
- 
+
 static void yaffs_HandleWriteChunkOk(yaffs_Device * dev, int chunkInNAND,
 				     const __u8 * data,
 				     const yaffs_ExtendedTags * tags)
@@ -1046,13 +1046,13 @@ void yaffs_HandleChunkError(yaffs_Device *dev, yaffs_BlockInfo *bi)
 		bi->gcPrioritise = 1;
 		dev->hasPendingPrioritisedGCs = 1;
 		bi->chunkErrorStrikes ++;
-		
+
 		if(bi->chunkErrorStrikes > 3){
 			bi->needsRetiring = 1; /* Too many stikes, so retire this */
 			T(YAFFS_TRACE_ALWAYS, (TSTR("yaffs: Block struck out" TENDSTR)));
 
 		}
-		
+
 	}
 }
 
@@ -1063,23 +1063,23 @@ static void yaffs_HandleWriteChunkError(yaffs_Device * dev, int chunkInNAND, int
 	yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, blockInNAND);
 
 	yaffs_HandleChunkError(dev,bi);
-		
-	
+
+
 	if(erasedOk ) {
 		/* Was an actual write failure, so mark the block for retirement  */
 		bi->needsRetiring = 1;
 		T(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS,
 		  (TSTR("**>> Block %d needs retiring" TENDSTR), blockInNAND));
 
-		
+
 	}
-	
+
 	/* Delete the chunk */
 	yaffs_DeleteChunk(dev, chunkInNAND, 1, __LINE__);
 }
 
 
-/*---------------- Name handling functions ------------*/ 
+/*---------------- Name handling functions ------------*/
 
 static __u16 yaffs_CalcNameSum(const YCHAR * name)
 {
@@ -1120,7 +1120,7 @@ static void yaffs_SetObjectName(yaffs_Object * obj, const YCHAR * name)
  * The list is hooked together using the first pointer
  * in the tnode.
  */
- 
+
 /* yaffs_CreateTnodes creates a bunch more tnodes and
  * adds them to the tnode free list.
  * Don't use this function directly
@@ -1138,7 +1138,7 @@ static int yaffs_CreateTnodes(yaffs_Device * dev, int nTnodes)
 
 	if (nTnodes < 1)
 		return YAFFS_OK;
-		
+
 	/* Calculate the tnode size in bytes for variable width tnode support.
 	 * Must be a multiple of 32-bits  */
 	tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8;
@@ -1175,7 +1175,7 @@ static int yaffs_CreateTnodes(yaffs_Device * dev, int nTnodes)
 		next = (yaffs_Tnode *) &mem[(i+1) * tnodeSize];
 		curr->internal[0] = next;
 	}
-	
+
 	curr = (yaffs_Tnode *) &mem[(nTnodes - 1) * tnodeSize];
 	curr->internal[0] = dev->freeTnodes;
 	dev->freeTnodes = (yaffs_Tnode *)mem;
@@ -1190,7 +1190,7 @@ static int yaffs_CreateTnodes(yaffs_Device * dev, int nTnodes)
 	 * NB If we can't add this to the management list it isn't fatal
 	 * but it just means we can't free this bunch of tnodes later.
 	 */
-	 
+
 	tnl = YMALLOC(sizeof(yaffs_TnodeList));
 	if (!tnl) {
 		T(YAFFS_TRACE_ERROR,
@@ -1239,11 +1239,11 @@ static yaffs_Tnode *yaffs_GetTnodeRaw(yaffs_Device * dev)
 static yaffs_Tnode *yaffs_GetTnode(yaffs_Device * dev)
 {
 	yaffs_Tnode *tn = yaffs_GetTnodeRaw(dev);
-	
+
 	if(tn)
 		memset(tn, 0, (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8);
 
-	return tn;	
+	return tn;
 }
 
 /* FreeTnode frees up a tnode and puts it back on the free list */
@@ -1299,19 +1299,19 @@ void yaffs_PutLevel0Tnode(yaffs_Device *dev, yaffs_Tnode *tn, unsigned pos, unsi
   __u32 bitInWord;
   __u32 wordInMap;
   __u32 mask;
-  
+
   pos &= YAFFS_TNODES_LEVEL0_MASK;
   val >>= dev->chunkGroupBits;
-  
+
   bitInMap = pos * dev->tnodeWidth;
   wordInMap = bitInMap /32;
   bitInWord = bitInMap & (32 -1);
-  
+
   mask = dev->tnodeMask << bitInWord;
-  
+
   map[wordInMap] &= ~mask;
   map[wordInMap] |= (mask & (val << bitInWord));
-  
+
   if(dev->tnodeWidth > (32-bitInWord)) {
     bitInWord = (32 - bitInWord);
     wordInMap++;;
@@ -1328,24 +1328,24 @@ static __u32 yaffs_GetChunkGroupBase(yaffs_Device *dev, yaffs_Tnode *tn, unsigne
   __u32 bitInWord;
   __u32 wordInMap;
   __u32 val;
-  
+
   pos &= YAFFS_TNODES_LEVEL0_MASK;
-  
+
   bitInMap = pos * dev->tnodeWidth;
   wordInMap = bitInMap /32;
   bitInWord = bitInMap & (32 -1);
-  
+
   val = map[wordInMap] >> bitInWord;
-  
+
   if(dev->tnodeWidth > (32-bitInWord)) {
     bitInWord = (32 - bitInWord);
     wordInMap++;;
     val |= (map[wordInMap] << bitInWord);
   }
-  
+
   val &= dev->tnodeMask;
   val <<= dev->chunkGroupBits;
-  
+
   return val;
 }
 
@@ -1394,7 +1394,7 @@ static yaffs_Tnode *yaffs_FindLevel0Tnode(yaffs_Device * dev,
 	while (level > 0 && tn) {
 		tn = tn->
 		    internal[(chunkId >>
-			       ( YAFFS_TNODES_LEVEL0_BITS + 
+			       ( YAFFS_TNODES_LEVEL0_BITS +
 			         (level - 1) *
 			         YAFFS_TNODES_INTERNAL_BITS)
 			      ) &
@@ -1416,7 +1416,7 @@ static yaffs_Tnode *yaffs_FindLevel0Tnode(yaffs_Device * dev,
  *  If the tn argument is NULL, then a fresh tnode will be added otherwise the specified tn will
  *  be plugged into the ttree.
  */
- 
+
 static yaffs_Tnode *yaffs_AddOrFindLevel0Tnode(yaffs_Device * dev,
 					       yaffs_FileStructure * fStruct,
 					       __u32 chunkId,
@@ -1453,7 +1453,7 @@ static yaffs_Tnode *yaffs_AddOrFindLevel0Tnode(yaffs_Device * dev,
 	if (requiredTallness > fStruct->topLevel) {
 		/* Not tall enough,gotta make the tree taller */
 		for (i = fStruct->topLevel; i < requiredTallness; i++) {
-		
+
 			tn = yaffs_GetTnode(dev);
 
 			if (tn) {
@@ -1472,7 +1472,7 @@ static yaffs_Tnode *yaffs_AddOrFindLevel0Tnode(yaffs_Device * dev,
 
 	l = fStruct->topLevel;
 	tn = fStruct->top;
-	
+
 	if(l > 0) {
 		while (l > 0 && tn) {
 			x = (chunkId >>
@@ -1492,13 +1492,13 @@ static yaffs_Tnode *yaffs_AddOrFindLevel0Tnode(yaffs_Device * dev,
 					if(tn->internal[x])
 						yaffs_FreeTnode(dev,tn->internal[x]);
 					tn->internal[x] = passedTn;
-			
+
 				} else if(!tn->internal[x]) {
 					/* Don't have one, none passed in */
 					tn->internal[x] = yaffs_GetTnode(dev);
 				}
 			}
-		
+
 			tn = tn->internal[x];
 			l--;
 		}
@@ -1539,7 +1539,7 @@ static int yaffs_FindChunkInGroup(yaffs_Device * dev, int theChunk,
 
 /* DeleteWorker scans backwards through the tnode tree and deletes all the
  * chunks and tnodes in the file
- * Returns 1 if the tree was deleted. 
+ * Returns 1 if the tree was deleted.
  * Returns 0 if it stopped early due to hitting the limit and the delete is incomplete.
  */
 
@@ -1653,7 +1653,7 @@ static void yaffs_SoftDeleteChunk(yaffs_Device * dev, int chunk)
  * of the tnode.
  * Thus, essentially this is the same as DeleteWorker except that the chunks are soft deleted.
  */
- 
+
 static int yaffs_SoftDeleteWorker(yaffs_Object * in, yaffs_Tnode * tn,
 				  __u32 level, int chunkOffset)
 {
@@ -1694,7 +1694,7 @@ static int yaffs_SoftDeleteWorker(yaffs_Object * in, yaffs_Tnode * tn,
 				theChunk = yaffs_GetChunkGroupBase(dev,tn,i);
 				if (theChunk) {
 					/* Note this does not find the real chunk, only the chunk group.
-					 * We make an assumption that a chunk group is not larger than 
+					 * We make an assumption that a chunk group is not larger than
 					 * a block.
 					 */
 					yaffs_SoftDeleteChunk(dev, theChunk);
@@ -1796,7 +1796,7 @@ static int yaffs_PruneFileStructure(yaffs_Device * dev,
 		/* Now we have a tree with all the non-zero branches NULL but the height
 		 * is the same as it was.
 		 * Let's see if we can trim internal tnodes to shorten the tree.
-		 * We can do this if only the 0th element in the tnode is in use 
+		 * We can do this if only the 0th element in the tnode is in use
 		 * (ie all the non-zero are NULL)
 		 */
 
@@ -1850,7 +1850,7 @@ static int yaffs_CreateFreeObjects(yaffs_Device * dev, int nObjects)
 		  (TSTR("yaffs: Could not allocate more objects" TENDSTR)));
 		return YAFFS_FAIL;
 	}
-	
+
 	/* Hook them into the free list */
 	for (i = 0; i < nObjects - 1; i++) {
 		newObjects[i].siblings.next =
@@ -2132,7 +2132,7 @@ yaffs_Object *yaffs_CreateNewObject(yaffs_Device * dev, int number,
 	theObject = yaffs_AllocateEmptyObject(dev);
 	if(!theObject)
 		return NULL;
-		
+
 	if(type == YAFFS_OBJECT_TYPE_FILE){
 		tn = yaffs_GetTnode(dev);
 		if(!tn){
@@ -2140,8 +2140,8 @@ yaffs_Object *yaffs_CreateNewObject(yaffs_Device * dev, int number,
 			return NULL;
 		}
 	}
-		
-	
+
+
 
 	if (theObject) {
 		theObject->fake = 0;
@@ -2205,7 +2205,7 @@ static yaffs_Object *yaffs_FindOrCreateObjectByNumber(yaffs_Device * dev,
 	return theObject;
 
 }
-			
+
 
 static YCHAR *yaffs_CloneString(const YCHAR * str)
 {
@@ -2227,7 +2227,7 @@ static YCHAR *yaffs_CloneString(const YCHAR * str)
  * aliasString only has meaning for a sumlink.
  * rdev only has meaning for devices (a subset of special objects)
  */
- 
+
 static yaffs_Object *yaffs_MknodObject(yaffs_ObjectType type,
 				       yaffs_Object * parent,
 				       const YCHAR * name,
@@ -2248,7 +2248,7 @@ static yaffs_Object *yaffs_MknodObject(yaffs_ObjectType type,
 	}
 
 	in = yaffs_CreateNewObject(dev, -1, type);
-	
+
 	if(type == YAFFS_OBJECT_TYPE_SYMLINK){
 		str = yaffs_CloneString(aliasString);
 		if(!str){
@@ -2256,8 +2256,8 @@ static yaffs_Object *yaffs_MknodObject(yaffs_ObjectType type,
 			return NULL;
 		}
 	}
-	
-	
+
+
 
 	if (in) {
 		in->chunkId = -1;
@@ -2298,7 +2298,7 @@ static yaffs_Object *yaffs_MknodObject(yaffs_ObjectType type,
 			    equivalentObject->objectId;
 			list_add(&in->hardLinks, &equivalentObject->hardLinks);
 			break;
-		case YAFFS_OBJECT_TYPE_FILE:	
+		case YAFFS_OBJECT_TYPE_FILE:
 		case YAFFS_OBJECT_TYPE_DIRECTORY:
 		case YAFFS_OBJECT_TYPE_SPECIAL:
 		case YAFFS_OBJECT_TYPE_UNKNOWN:
@@ -2382,7 +2382,7 @@ static int yaffs_ChangeObjectName(yaffs_Object * obj, yaffs_Object * newDir,
 		    TENDSTR)));
 		YBUG();
 	}
-	
+
 	/* TODO: Do we need this different handling for YAFFS2 and YAFFS1?? */
 	if (obj->myDev->isYaffs2) {
 		unlinkOp = (newDir == obj->myDev->unlinkedDir);
@@ -2395,9 +2395,9 @@ static int yaffs_ChangeObjectName(yaffs_Object * obj, yaffs_Object * newDir,
 
 	existingTarget = yaffs_FindObjectByName(newDir, newName);
 
-	/* If the object is a file going into the unlinked directory, 
+	/* If the object is a file going into the unlinked directory,
 	 *   then it is OK to just stuff it in since duplicate names are allowed.
-	 *   else only proceed if the new name does not exist and if we're putting 
+	 *   else only proceed if the new name does not exist and if we're putting
 	 *   it into a directory.
 	 */
 	if ((unlinkOp ||
@@ -2461,7 +2461,7 @@ int yaffs_RenameObject(yaffs_Object * oldDir, const YCHAR * oldName,
 			/* There is a target that is a non-empty directory, so we fail */
 			return YAFFS_FAIL;	/* EEXIST or ENOTEMPTY */
 		} else if (existingTarget && existingTarget != obj) {
-			/* Nuke the target first, using shadowing, 
+			/* Nuke the target first, using shadowing,
 			 * but only if it isn't the same object
 			 */
 			yaffs_ChangeObjectName(obj, newDir, newName, force,
@@ -2479,10 +2479,10 @@ int yaffs_RenameObject(yaffs_Object * oldDir, const YCHAR * oldName,
 static int yaffs_InitialiseBlocks(yaffs_Device * dev)
 {
 	int nBlocks = dev->internalEndBlock - dev->internalStartBlock + 1;
-	
+
 	dev->blockInfo = NULL;
 	dev->chunkBits = NULL;
-	
+
 	dev->allocationBlock = -1;	/* force it to get a new one */
 
 	/* If the first allocation strategy fails, thry the alternate one */
@@ -2493,9 +2493,9 @@ static int yaffs_InitialiseBlocks(yaffs_Device * dev)
 	}
 	else
 		dev->blockInfoAlt = 0;
-		
+
 	if(dev->blockInfo){
-	
+
 		/* Set up dynamic blockinfo stuff. */
 		dev->chunkBitmapStride = (dev->nChunksPerBlock + 7) / 8; /* round up bytes */
 		dev->chunkBits = YMALLOC(dev->chunkBitmapStride * nBlocks);
@@ -2506,7 +2506,7 @@ static int yaffs_InitialiseBlocks(yaffs_Device * dev)
 		else
 			dev->chunkBitsAlt = 0;
 	}
-	
+
 	if (dev->blockInfo && dev->chunkBits) {
 		memset(dev->blockInfo, 0, nBlocks * sizeof(yaffs_BlockInfo));
 		memset(dev->chunkBits, 0, dev->chunkBitmapStride * nBlocks);
@@ -2527,7 +2527,7 @@ static void yaffs_DeinitialiseBlocks(yaffs_Device * dev)
 	dev->blockInfoAlt = 0;
 
 	dev->blockInfo = NULL;
-	
+
 	if(dev->chunkBitsAlt && dev->chunkBits)
 		YFREE_ALT(dev->chunkBits);
 	else if(dev->chunkBits)
@@ -2591,14 +2591,14 @@ static int yaffs_FindBlockForGarbageCollection(yaffs_Device * dev,
 	int prioritised=0;
 	yaffs_BlockInfo *bi;
 	int pendingPrioritisedExist = 0;
-	
+
 	/* First let's see if we need to grab a prioritised block */
 	if(dev->hasPendingPrioritisedGCs){
 		for(i = dev->internalStartBlock; i < dev->internalEndBlock && !prioritised; i++){
 
 			bi = yaffs_GetBlockInfo(dev, i);
 			//yaffs_VerifyBlock(dev,bi,i);
-			
+
 			if(bi->gcPrioritise) {
 				pendingPrioritisedExist = 1;
 				if(bi->blockState == YAFFS_BLOCK_STATE_FULL &&
@@ -2610,7 +2610,7 @@ static int yaffs_FindBlockForGarbageCollection(yaffs_Device * dev,
 				}
 			}
 		}
-		
+
 		if(!pendingPrioritisedExist) /* None found, so we can clear this */
 			dev->hasPendingPrioritisedGCs = 0;
 	}
@@ -2662,7 +2662,7 @@ static int yaffs_FindBlockForGarbageCollection(yaffs_Device * dev,
 			dirtiest = b;
 			pagesInUse = 0;
 		}
-		else 
+		else
 #endif
 
 		if (bi->blockState == YAFFS_BLOCK_STATE_FULL &&
@@ -2699,11 +2699,11 @@ static void yaffs_BlockBecameDirty(yaffs_Device * dev, int blockNo)
 	/* If the block is still healthy erase it and mark as clean.
 	 * If the block has had a data failure, then retire it.
 	 */
-	 
+
 	T(YAFFS_TRACE_GC | YAFFS_TRACE_ERASE,
 		(TSTR("yaffs_BlockBecameDirty block %d state %d %s"TENDSTR),
 		blockNo, bi->blockState, (bi->needsRetiring) ? "needs retiring" : ""));
-		
+
 	bi->blockState = YAFFS_BLOCK_STATE_DIRTY;
 
 	if (!bi->needsRetiring) {
@@ -2716,7 +2716,7 @@ static void yaffs_BlockBecameDirty(yaffs_Device * dev, int blockNo)
 		}
 	}
 
-	if (erasedOk && 
+	if (erasedOk &&
 	    ((yaffs_traceMask & YAFFS_TRACE_ERASE) || !yaffs_SkipVerification(dev))) {
 		int i;
 		for (i = 0; i < dev->nChunksPerBlock; i++) {
@@ -2767,7 +2767,7 @@ static int yaffs_FindBlockForAllocation(yaffs_Device * dev)
 
 		return -1;
 	}
-	
+
 	/* Find an empty block. */
 
 	for (i = dev->internalStartBlock; i <= dev->internalEndBlock; i++) {
@@ -2808,13 +2808,13 @@ static int yaffs_CheckSpaceForAllocation(yaffs_Device * dev)
 	int reservedChunks;
 	int reservedBlocks = dev->nReservedBlocks;
 	int checkpointBlocks;
-	
+
 	checkpointBlocks =  dev->nCheckpointReservedBlocks - dev->blocksInCheckpoint;
 	if(checkpointBlocks < 0)
 		checkpointBlocks = 0;
-	
+
 	reservedChunks = ((reservedBlocks + checkpointBlocks) * dev->nChunksPerBlock);
-	
+
 	return (dev->nFreeChunks > reservedChunks);
 }
 
@@ -2861,10 +2861,10 @@ static int yaffs_AllocateChunk(yaffs_Device * dev, int useReserve, yaffs_BlockIn
 
 		if(blockUsedPtr)
 			*blockUsedPtr = bi;
-			
+
 		return retVal;
 	}
-	
+
 	T(YAFFS_TRACE_ERROR,
 	  (TSTR("!!!!!!!!! Allocator out !!!!!!!!!!!!!!!!!" TENDSTR)));
 
@@ -2907,7 +2907,7 @@ static int yaffs_GarbageCollectBlock(yaffs_Device * dev, int block)
 	yaffs_Object *object;
 
 	isCheckpointBlock = (bi->blockState == YAFFS_BLOCK_STATE_CHECKPOINT);
-	
+
 	bi->blockState = YAFFS_BLOCK_STATE_COLLECTING;
 
 	T(YAFFS_TRACE_TRACING,
@@ -2935,7 +2935,7 @@ static int yaffs_GarbageCollectBlock(yaffs_Device * dev, int block)
 	} else {
 
 		__u8 *buffer = yaffs_GetTempBuffer(dev, __LINE__);
-		
+
 		yaffs_VerifyBlock(dev,bi,block);
 
 		for (chunkInBlock = 0, oldChunk = block * dev->nChunksPerBlock;
@@ -2962,7 +2962,7 @@ static int yaffs_GarbageCollectBlock(yaffs_Device * dev, int block)
 				   ("Collecting page %d, %d %d %d " TENDSTR),
 				   chunkInBlock, tags.objectId, tags.chunkId,
 				   tags.byteCount));
-				   
+
 				if(object && !yaffs_SkipVerification(dev)){
 					if(tags.chunkId == 0)
 						matchingChunk = object->chunkId;
@@ -2970,12 +2970,12 @@ static int yaffs_GarbageCollectBlock(yaffs_Device * dev, int block)
 						matchingChunk = oldChunk; /* Defeat the test */
 					else
 						matchingChunk = yaffs_FindChunkInFile(object,tags.chunkId,NULL);
-					
+
 					if(oldChunk != matchingChunk)
 						T(YAFFS_TRACE_ERROR,
 						  (TSTR("gc: page in gc mismatch: %d %d %d %d"TENDSTR),
 						  oldChunk,matchingChunk,tags.objectId, tags.chunkId));
-						
+
 				}
 
 				if (!object) {
@@ -2990,7 +2990,7 @@ static int yaffs_GarbageCollectBlock(yaffs_Device * dev, int block)
 				    && tags.chunkId != 0) {
 					/* Data chunk in a deleted file, throw it away
 					 * It's a soft deleted data chunk,
-					 * No need to copy this, just forget about it and 
+					 * No need to copy this, just forget about it and
 					 * fix up the object.
 					 */
 
@@ -3040,7 +3040,7 @@ static int yaffs_GarbageCollectBlock(yaffs_Device * dev, int block)
 						oh->shadowsObject = -1;
 						tags.extraShadows = 0;
 						tags.extraIsShrinkHeader = 0;
-						
+
 						yaffs_VerifyObjectHeader(object,oh,&tags,1);
 					}
 
@@ -3099,7 +3099,7 @@ static int yaffs_GarbageCollectBlock(yaffs_Device * dev, int block)
 	}
 
 	yaffs_VerifyCollectedBlock(dev,bi,block);
-	  
+
 	if (chunksBefore >= (chunksAfter = yaffs_GetErasedChunks(dev))) {
 		T(YAFFS_TRACE_GC,
 		  (TSTR
@@ -3127,21 +3127,21 @@ static int yaffs_CheckGarbageCollection(yaffs_Device * dev)
 	int aggressive;
 	int gcOk = YAFFS_OK;
 	int maxTries = 0;
-	
+
 	int checkpointBlockAdjust;
 
 	if (dev->isDoingGC) {
 		/* Bail out so we don't get recursive gc */
 		return YAFFS_OK;
 	}
-	
+
 	/* This loop should pass the first time.
 	 * We'll only see looping here if the erase of the collected block fails.
 	 */
 
 	do {
 		maxTries++;
-		
+
 		checkpointBlockAdjust = (dev->nCheckpointReservedBlocks - dev->blocksInCheckpoint);
 		if(checkpointBlockAdjust < 0)
 			checkpointBlockAdjust = 0;
@@ -3326,11 +3326,11 @@ static int yaffs_CheckFileSanity(yaffs_Object * in)
 static int yaffs_PutChunkIntoFile(yaffs_Object * in, int chunkInInode,
 				  int chunkInNAND, int inScan)
 {
-	/* NB inScan is zero unless scanning. 
-	 * For forward scanning, inScan is > 0; 
+	/* NB inScan is zero unless scanning.
+	 * For forward scanning, inScan is > 0;
 	 * for backward scanning inScan is < 0
 	 */
-	 
+
 	yaffs_Tnode *tn;
 	yaffs_Device *dev = in->myDev;
 	int existingChunk;
@@ -3354,7 +3354,7 @@ static int yaffs_PutChunkIntoFile(yaffs_Object * in, int chunkInInode,
 		return YAFFS_OK;
 	}
 
-	tn = yaffs_AddOrFindLevel0Tnode(dev, 
+	tn = yaffs_AddOrFindLevel0Tnode(dev,
 					&in->variant.fileVariant,
 					chunkInInode,
 					NULL);
@@ -3366,7 +3366,7 @@ static int yaffs_PutChunkIntoFile(yaffs_Object * in, int chunkInInode,
 
 	if (inScan != 0) {
 		/* If we're scanning then we need to test for duplicates
-		 * NB This does not need to be efficient since it should only ever 
+		 * NB This does not need to be efficient since it should only ever
 		 * happen when the power fails during a write, then only one
 		 * chunk should ever be affected.
 		 *
@@ -3407,7 +3407,7 @@ static int yaffs_PutChunkIntoFile(yaffs_Object * in, int chunkInInode,
 
 			}
 
-			/* NB The deleted flags should be false, otherwise the chunks will 
+			/* NB The deleted flags should be false, otherwise the chunks will
 			 * not be loaded during a scan
 			 */
 
@@ -3418,7 +3418,7 @@ static int yaffs_PutChunkIntoFile(yaffs_Object * in, int chunkInInode,
 			    (in->myDev->isYaffs2 ||
 			     existingChunk <= 0 ||
 			     ((existingSerial + 1) & 3) == newSerial)) {
-				/* Forward scanning.                            
+				/* Forward scanning.
 				 * Use new
 				 * Delete the old one and drop through to update the tnode
 				 */
@@ -3459,7 +3459,7 @@ static int yaffs_ReadChunkDataFromObject(yaffs_Object * in, int chunkInInode,
 		  (TSTR("Chunk %d not found zero instead" TENDSTR),
 		   chunkInNAND));
 		/* get sane (zero) data if you read a hole */
-		memset(buffer, 0, in->myDev->nDataBytesPerChunk);	
+		memset(buffer, 0, in->myDev->nDataBytesPerChunk);
 		return 0;
 	}
 
@@ -3474,7 +3474,7 @@ void yaffs_DeleteChunk(yaffs_Device * dev, int chunkId, int markNAND, int lyn)
 
 	if (chunkId <= 0)
 		return;
-		
+
 
 	dev->nDeletions++;
 	block = chunkId / dev->nChunksPerBlock;
@@ -3602,7 +3602,7 @@ int yaffs_UpdateObjectHeader(yaffs_Object * in, const YCHAR * name, int force,
 	YCHAR oldName[YAFFS_MAX_NAME_LENGTH + 1];
 
 	yaffs_ObjectHeader *oh = NULL;
-	
+
 	yaffs_strcpy(oldName,"silly old name");
 
 	if (!in->fake || force) {
@@ -3618,9 +3618,9 @@ int yaffs_UpdateObjectHeader(yaffs_Object * in, const YCHAR * name, int force,
 		if (prevChunkId >= 0) {
 			result = yaffs_ReadChunkWithTagsFromNAND(dev, prevChunkId,
 							buffer, &oldTags);
-			
+
 			yaffs_VerifyObjectHeader(in,oh,&oldTags,0);
-										
+
 			memcpy(oldName, oh->name, sizeof(oh->name));
 		}
 
@@ -3748,11 +3748,11 @@ int yaffs_UpdateObjectHeader(yaffs_Object * in, const YCHAR * name, int force,
 
 /*------------------------ Short Operations Cache ----------------------------------------
  *   In many situations where there is no high level buffering (eg WinCE) a lot of
- *   reads might be short sequential reads, and a lot of writes may be short 
+ *   reads might be short sequential reads, and a lot of writes may be short
  *   sequential writes. eg. scanning/writing a jpeg file.
- *   In these cases, a short read/write cache can provide a huge perfomance benefit 
+ *   In these cases, a short read/write cache can provide a huge perfomance benefit
  *   with dumb-as-a-rock code.
- *   In Linux, the page cache provides read buffering aand the short op cache provides write 
+ *   In Linux, the page cache provides read buffering aand the short op cache provides write
  *   buffering.
  *
  *   There are a limited number (~10) of cache chunks per device so that we don't
@@ -3765,14 +3765,14 @@ static int yaffs_ObjectHasCachedWriteData(yaffs_Object *obj)
 	int i;
 	yaffs_ChunkCache *cache;
 	int nCaches = obj->myDev->nShortOpCaches;
-	
+
 	for(i = 0; i < nCaches; i++){
 		cache = &dev->srCache[i];
 		if (cache->object == obj &&
 		    cache->dirty)
 			return 1;
 	}
-	
+
 	return 0;
 }
 
@@ -3838,7 +3838,7 @@ void yaffs_FlushEntireDeviceCache(yaffs_Device *dev)
 	yaffs_Object *obj;
 	int nCaches = dev->nShortOpCaches;
 	int i;
-	
+
 	/* Find a dirty object in the cache and flush it...
 	 * until there are no further dirty objects.
 	 */
@@ -3848,18 +3848,18 @@ void yaffs_FlushEntireDeviceCache(yaffs_Device *dev)
 			if (dev->srCache[i].object &&
 			    dev->srCache[i].dirty)
 				obj = dev->srCache[i].object;
-			    
+
 		}
 		if(obj)
 			yaffs_FlushFilesChunkCache(obj);
-			
+
 	} while(obj);
-	
+
 }
 
 
 /* Grab us a cache chunk for use.
- * First look for an empty one. 
+ * First look for an empty one.
  * Then look for the least recently used non-dirty one.
  * Then look for the least recently used dirty one...., flush and look again.
  */
@@ -3871,7 +3871,7 @@ static yaffs_ChunkCache *yaffs_GrabChunkCacheWorker(yaffs_Device * dev)
 
 	if (dev->nShortOpCaches > 0) {
 		for (i = 0; i < dev->nShortOpCaches; i++) {
-			if (!dev->srCache[i].object) 
+			if (!dev->srCache[i].object)
 				return &dev->srCache[i];
 		}
 
@@ -4032,14 +4032,14 @@ static void yaffs_InvalidateWholeChunkCache(yaffs_Object * in)
 static int yaffs_WriteCheckpointValidityMarker(yaffs_Device *dev,int head)
 {
 	yaffs_CheckpointValidity cp;
-	
+
 	memset(&cp,0,sizeof(cp));
-	
+
 	cp.structType = sizeof(cp);
 	cp.magic = YAFFS_MAGIC;
 	cp.version = YAFFS_CHECKPOINT_VERSION;
 	cp.head = (head) ? 1 : 0;
-	
+
 	return (yaffs_CheckpointWrite(dev,&cp,sizeof(cp)) == sizeof(cp))?
 		1 : 0;
 }
@@ -4048,9 +4048,9 @@ static int yaffs_ReadCheckpointValidityMarker(yaffs_Device *dev, int head)
 {
 	yaffs_CheckpointValidity cp;
 	int ok;
-	
+
 	ok = (yaffs_CheckpointRead(dev,&cp,sizeof(cp)) == sizeof(cp));
-	
+
 	if(ok)
 		ok = (cp.structType == sizeof(cp)) &&
 		     (cp.magic == YAFFS_MAGIC) &&
@@ -4059,20 +4059,20 @@ static int yaffs_ReadCheckpointValidityMarker(yaffs_Device *dev, int head)
 	return ok ? 1 : 0;
 }
 
-static void yaffs_DeviceToCheckpointDevice(yaffs_CheckpointDevice *cp, 
+static void yaffs_DeviceToCheckpointDevice(yaffs_CheckpointDevice *cp,
 					   yaffs_Device *dev)
 {
 	cp->nErasedBlocks = dev->nErasedBlocks;
 	cp->allocationBlock = dev->allocationBlock;
 	cp->allocationPage = dev->allocationPage;
 	cp->nFreeChunks = dev->nFreeChunks;
-	
+
 	cp->nDeletedFiles = dev->nDeletedFiles;
 	cp->nUnlinkedFiles = dev->nUnlinkedFiles;
 	cp->nBackgroundDeletions = dev->nBackgroundDeletions;
 	cp->sequenceNumber = dev->sequenceNumber;
 	cp->oldestDirtySequence = dev->oldestDirtySequence;
-	
+
 }
 
 static void yaffs_CheckpointDeviceToDevice(yaffs_Device *dev,
@@ -4082,7 +4082,7 @@ static void yaffs_CheckpointDeviceToDevice(yaffs_Device *dev,
 	dev->allocationBlock = cp->allocationBlock;
 	dev->allocationPage = cp->allocationPage;
 	dev->nFreeChunks = cp->nFreeChunks;
-	
+
 	dev->nDeletedFiles = cp->nDeletedFiles;
 	dev->nUnlinkedFiles = cp->nUnlinkedFiles;
 	dev->nBackgroundDeletions = cp->nBackgroundDeletions;
@@ -4098,20 +4098,20 @@ static int yaffs_WriteCheckpointDevice(yaffs_Device *dev)
 	__u32 nBlocks = (dev->internalEndBlock - dev->internalStartBlock + 1);
 
 	int ok;
-		
+
 	/* Write device runtime values*/
 	yaffs_DeviceToCheckpointDevice(&cp,dev);
 	cp.structType = sizeof(cp);
-	
+
 	ok = (yaffs_CheckpointWrite(dev,&cp,sizeof(cp)) == sizeof(cp));
-	
+
 	/* Write block info */
 	if(ok) {
 		nBytes = nBlocks * sizeof(yaffs_BlockInfo);
 		ok = (yaffs_CheckpointWrite(dev,dev->blockInfo,nBytes) == nBytes);
 	}
-		
-	/* Write chunk bits */		
+
+	/* Write chunk bits */
 	if(ok) {
 		nBytes = nBlocks * dev->chunkBitmapStride;
 		ok = (yaffs_CheckpointWrite(dev,dev->chunkBits,nBytes) == nBytes);
@@ -4126,28 +4126,28 @@ static int yaffs_ReadCheckpointDevice(yaffs_Device *dev)
 	__u32 nBytes;
 	__u32 nBlocks = (dev->internalEndBlock - dev->internalStartBlock + 1);
 
-	int ok;	
-	
+	int ok;
+
 	ok = (yaffs_CheckpointRead(dev,&cp,sizeof(cp)) == sizeof(cp));
 	if(!ok)
 		return 0;
-		
+
 	if(cp.structType != sizeof(cp))
 		return 0;
-		
-	
+
+
 	yaffs_CheckpointDeviceToDevice(dev,&cp);
-	
+
 	nBytes = nBlocks * sizeof(yaffs_BlockInfo);
-	
+
 	ok = (yaffs_CheckpointRead(dev,dev->blockInfo,nBytes) == nBytes);
-	
+
 	if(!ok)
 		return 0;
 	nBytes = nBlocks * dev->chunkBitmapStride;
-	
+
 	ok = (yaffs_CheckpointRead(dev,dev->chunkBits,nBytes) == nBytes);
-	
+
 	return ok ? 1 : 0;
 }
 
@@ -4158,7 +4158,7 @@ static void yaffs_ObjectToCheckpointObject(yaffs_CheckpointObject *cp,
 	cp->objectId = obj->objectId;
 	cp->parentId = (obj->parent) ? obj->parent->objectId : 0;
 	cp->chunkId = obj->chunkId;
-	cp->variantType = obj->variantType;			
+	cp->variantType = obj->variantType;
 	cp->deleted = obj->deleted;
 	cp->softDeleted = obj->softDeleted;
 	cp->unlinked = obj->unlinked;
@@ -4167,7 +4167,7 @@ static void yaffs_ObjectToCheckpointObject(yaffs_CheckpointObject *cp,
 	cp->unlinkAllowed = obj->unlinkAllowed;
 	cp->serial = obj->serial;
 	cp->nDataChunks = obj->nDataChunks;
-	
+
 	if(obj->variantType == YAFFS_OBJECT_TYPE_FILE)
 		cp->fileSizeOrEquivalentObjectId = obj->variant.fileVariant.fileSize;
 	else if(obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK)
@@ -4178,9 +4178,9 @@ static void yaffs_CheckpointObjectToObject( yaffs_Object *obj,yaffs_CheckpointOb
 {
 
 	yaffs_Object *parent;
-	
+
 	obj->objectId = cp->objectId;
-	
+
 	if(cp->parentId)
 		parent = yaffs_FindOrCreateObjectByNumber(
 					obj->myDev,
@@ -4188,12 +4188,12 @@ static void yaffs_CheckpointObjectToObject( yaffs_Object *obj,yaffs_CheckpointOb
 					YAFFS_OBJECT_TYPE_DIRECTORY);
 	else
 		parent = NULL;
-		
+
 	if(parent)
 		yaffs_AddObjectToDirectory(parent, obj);
-		
+
 	obj->chunkId = cp->chunkId;
-	obj->variantType = cp->variantType;			
+	obj->variantType = cp->variantType;
 	obj->deleted = cp->deleted;
 	obj->softDeleted = cp->softDeleted;
 	obj->unlinked = cp->unlinked;
@@ -4202,12 +4202,12 @@ static void yaffs_CheckpointObjectToObject( yaffs_Object *obj,yaffs_CheckpointOb
 	obj->unlinkAllowed = cp->unlinkAllowed;
 	obj->serial = cp->serial;
 	obj->nDataChunks = cp->nDataChunks;
-	
+
 	if(obj->variantType == YAFFS_OBJECT_TYPE_FILE)
 		obj->variant.fileVariant.fileSize = cp->fileSizeOrEquivalentObjectId;
 	else if(obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK)
 		obj->variant.hardLinkVariant.equivalentObjectId = cp->fileSizeOrEquivalentObjectId;
-		
+
 	if(obj->objectId >= YAFFS_NOBJECT_BUCKETS)
 		obj->lazyLoaded = 1;
 }
@@ -4250,17 +4250,17 @@ static int yaffs_WriteCheckpointTnodes(yaffs_Object *obj)
 {
 	__u32 endMarker = ~0;
 	int ok = 1;
-	
+
 	if(obj->variantType == YAFFS_OBJECT_TYPE_FILE){
 		ok = yaffs_CheckpointTnodeWorker(obj,
 					    obj->variant.fileVariant.top,
 					    obj->variant.fileVariant.topLevel,
 					    0);
 		if(ok)
-			ok = (yaffs_CheckpointWrite(obj->myDev,&endMarker,sizeof(endMarker)) == 
+			ok = (yaffs_CheckpointWrite(obj->myDev,&endMarker,sizeof(endMarker)) ==
 				sizeof(endMarker));
 	}
-	
+
 	return ok ? 1 : 0;
 }
 
@@ -4272,14 +4272,14 @@ static int yaffs_ReadCheckpointTnodes(yaffs_Object *obj)
 	yaffs_FileStructure *fileStructPtr = &obj->variant.fileVariant;
 	yaffs_Tnode *tn;
 	int nread = 0;
-	
+
 	ok = (yaffs_CheckpointRead(dev,&baseChunk,sizeof(baseChunk)) == sizeof(baseChunk));
-	
+
 	while(ok && (~baseChunk)){
 		nread++;
 		/* Read level 0 tnode */
-		
-		
+
+
 		/* printf("read  tnode at %d\n",baseChunk); */
 		tn = yaffs_GetTnodeRaw(dev);
 		if(tn)
@@ -4287,27 +4287,27 @@ static int yaffs_ReadCheckpointTnodes(yaffs_Object *obj)
 			      (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8);
 		else
 			ok = 0;
-			
+
 		if(tn && ok){
 			ok = yaffs_AddOrFindLevel0Tnode(dev,
 					       		fileStructPtr,
 					       		baseChunk,
 					       		tn) ? 1 : 0;
-					       		
+
 		}
-			
+
 		if(ok)
 			ok = (yaffs_CheckpointRead(dev,&baseChunk,sizeof(baseChunk)) == sizeof(baseChunk));
-		
+
 	}
 
 	T(YAFFS_TRACE_CHECKPOINT,(
 		TSTR("Checkpoint read tnodes %d records, last %d. ok %d" TENDSTR),
 		nread,baseChunk,ok));
 
-	return ok ? 1 : 0;	
+	return ok ? 1 : 0;
 }
- 
+
 
 static int yaffs_WriteCheckpointObjects(yaffs_Device *dev)
 {
@@ -4317,11 +4317,11 @@ static int yaffs_WriteCheckpointObjects(yaffs_Device *dev)
 	int ok = 1;
 	struct list_head *lh;
 
-	
+
 	/* Iterate through the objects in each hash entry,
 	 * dumping them to the checkpointing stream.
 	 */
-	 
+
 	 for(i = 0; ok &&  i <  YAFFS_NOBJECT_BUCKETS; i++){
 	 	list_for_each(lh, &dev->objectBucket[i].list) {
 			if (lh) {
@@ -4333,9 +4333,9 @@ static int yaffs_WriteCheckpointObjects(yaffs_Device *dev)
 					T(YAFFS_TRACE_CHECKPOINT,(
 						TSTR("Checkpoint write object %d parent %d type %d chunk %d obj addr %x" TENDSTR),
 						cp.objectId,cp.parentId,cp.variantType,cp.chunkId,(unsigned) obj));
-						
+
 					ok = (yaffs_CheckpointWrite(dev,&cp,sizeof(cp)) == sizeof(cp));
-					
+
 					if(ok && obj->variantType == YAFFS_OBJECT_TYPE_FILE){
 						ok = yaffs_WriteCheckpointTnodes(obj);
 					}
@@ -4343,14 +4343,14 @@ static int yaffs_WriteCheckpointObjects(yaffs_Device *dev)
 			}
 		}
 	 }
-	 
+
 	 /* Dump end of list */
 	memset(&cp,0xFF,sizeof(yaffs_CheckpointObject));
 	cp.structType = sizeof(cp);
-	
+
 	if(ok)
 		ok = (yaffs_CheckpointWrite(dev,&cp,sizeof(cp)) == sizeof(cp));
-		
+
 	return ok ? 1 : 0;
 }
 
@@ -4361,7 +4361,7 @@ static int yaffs_ReadCheckpointObjects(yaffs_Device *dev)
 	int ok = 1;
 	int done = 0;
 	yaffs_Object *hardList = NULL;
-	
+
 	while(ok && !done) {
 		ok = (yaffs_CheckpointRead(dev,&cp,sizeof(cp)) == sizeof(cp));
 		if(cp.structType != sizeof(cp)) {
@@ -4369,10 +4369,10 @@ static int yaffs_ReadCheckpointObjects(yaffs_Device *dev)
 				cp.structType,sizeof(cp),ok));
 			ok = 0;
 		}
-			
+
 		T(YAFFS_TRACE_CHECKPOINT,(TSTR("Checkpoint read object %d parent %d type %d chunk %d " TENDSTR),
 			cp.objectId,cp.parentId,cp.variantType,cp.chunkId));
-			
+
 		if(ok && cp.objectId == ~0)
 			done = 1;
 		else if(ok){
@@ -4387,14 +4387,14 @@ static int yaffs_ReadCheckpointObjects(yaffs_Device *dev)
 						    hardList;
 					hardList = obj;
 				}
-			   
+
 			}
 		}
 	}
-	
+
 	if(ok)
 		yaffs_HardlinkFixup(dev,hardList);
-	
+
 	return ok ? 1 : 0;
 }
 
@@ -4402,14 +4402,14 @@ static int yaffs_WriteCheckpointSum(yaffs_Device *dev)
 {
 	__u32 checkpointSum;
 	int ok;
-	
+
 	yaffs_GetCheckpointSum(dev,&checkpointSum);
-	
+
 	ok = (yaffs_CheckpointWrite(dev,&checkpointSum,sizeof(checkpointSum)) == sizeof(checkpointSum));
-	
+
 	if(!ok)
 		return 0;
-	
+
 	return 1;
 }
 
@@ -4418,17 +4418,17 @@ static int yaffs_ReadCheckpointSum(yaffs_Device *dev)
 	__u32 checkpointSum0;
 	__u32 checkpointSum1;
 	int ok;
-	
+
 	yaffs_GetCheckpointSum(dev,&checkpointSum0);
-	
+
 	ok = (yaffs_CheckpointRead(dev,&checkpointSum1,sizeof(checkpointSum1)) == sizeof(checkpointSum1));
-	
+
 	if(!ok)
 		return 0;
-		
+
 	if(checkpointSum0 != checkpointSum1)
 		return 0;
-	
+
 	return 1;
 }
 
@@ -4437,15 +4437,15 @@ static int yaffs_WriteCheckpointData(yaffs_Device *dev)
 {
 
 	int ok = 1;
-	
+
 	if(dev->skipCheckpointWrite || !dev->isYaffs2){
 		T(YAFFS_TRACE_CHECKPOINT,(TSTR("skipping checkpoint write" TENDSTR)));
 		ok = 0;
 	}
-		
+
 	if(ok)
 		ok = yaffs_CheckpointOpen(dev,1);
-	
+
 	if(ok){
 		T(YAFFS_TRACE_CHECKPOINT,(TSTR("write checkpoint validity" TENDSTR)));
 		ok = yaffs_WriteCheckpointValidityMarker(dev,1);
@@ -4462,18 +4462,18 @@ static int yaffs_WriteCheckpointData(yaffs_Device *dev)
 		T(YAFFS_TRACE_CHECKPOINT,(TSTR("write checkpoint validity" TENDSTR)));
 		ok = yaffs_WriteCheckpointValidityMarker(dev,0);
 	}
-	
+
 	if(ok){
 		ok = yaffs_WriteCheckpointSum(dev);
 	}
-	
-	
+
+
 	if(!yaffs_CheckpointClose(dev))
 		 ok = 0;
-		 
+
 	if(ok)
 	    	dev->isCheckpointed = 1;
-	 else 
+	 else
 	 	dev->isCheckpointed = 0;
 
 	return dev->isCheckpointed;
@@ -4482,17 +4482,17 @@ static int yaffs_WriteCheckpointData(yaffs_Device *dev)
 static int yaffs_ReadCheckpointData(yaffs_Device *dev)
 {
 	int ok = 1;
-	
+
 	if(dev->skipCheckpointRead || !dev->isYaffs2){
 		T(YAFFS_TRACE_CHECKPOINT,(TSTR("skipping checkpoint read" TENDSTR)));
 		ok = 0;
 	}
-	
+
 	if(ok)
 		ok = yaffs_CheckpointOpen(dev,0); /* open for read */
-	
+
 	if(ok){
-		T(YAFFS_TRACE_CHECKPOINT,(TSTR("read checkpoint validity" TENDSTR)));	
+		T(YAFFS_TRACE_CHECKPOINT,(TSTR("read checkpoint validity" TENDSTR)));
 		ok = yaffs_ReadCheckpointValidityMarker(dev,1);
 	}
 	if(ok){
@@ -4500,14 +4500,14 @@ static int yaffs_ReadCheckpointData(yaffs_Device *dev)
 		ok = yaffs_ReadCheckpointDevice(dev);
 	}
 	if(ok){
-		T(YAFFS_TRACE_CHECKPOINT,(TSTR("read checkpoint objects" TENDSTR)));	
+		T(YAFFS_TRACE_CHECKPOINT,(TSTR("read checkpoint objects" TENDSTR)));
 		ok = yaffs_ReadCheckpointObjects(dev);
 	}
 	if(ok){
 		T(YAFFS_TRACE_CHECKPOINT,(TSTR("read checkpoint validity" TENDSTR)));
 		ok = yaffs_ReadCheckpointValidityMarker(dev,0);
 	}
-	
+
 	if(ok){
 		ok = yaffs_ReadCheckpointSum(dev);
 		T(YAFFS_TRACE_CHECKPOINT,(TSTR("read checkpoint checksum %d" TENDSTR),ok));
@@ -4518,7 +4518,7 @@ static int yaffs_ReadCheckpointData(yaffs_Device *dev)
 
 	if(ok)
 	    	dev->isCheckpointed = 1;
-	 else 
+	 else
 	 	dev->isCheckpointed = 0;
 
 	return ok ? 1 : 0;
@@ -4527,7 +4527,7 @@ static int yaffs_ReadCheckpointData(yaffs_Device *dev)
 
 static void yaffs_InvalidateCheckpoint(yaffs_Device *dev)
 {
-	if(dev->isCheckpointed || 
+	if(dev->isCheckpointed ||
 	   dev->blocksInCheckpoint > 0){
 		dev->isCheckpointed = 0;
 		yaffs_CheckpointInvalidateStream(dev);
@@ -4550,7 +4550,7 @@ int yaffs_CheckpointSave(yaffs_Device *dev)
 		yaffs_InvalidateCheckpoint(dev);
 		yaffs_WriteCheckpointData(dev);
 	}
-	
+
 	T(YAFFS_TRACE_ALWAYS,(TSTR("save exit: isCheckpointed %d"TENDSTR),dev->isCheckpointed));
 
 	return dev->isCheckpointed;
@@ -4560,7 +4560,7 @@ int yaffs_CheckpointRestore(yaffs_Device *dev)
 {
 	int retval;
 	T(YAFFS_TRACE_CHECKPOINT,(TSTR("restore entry: isCheckpointed %d"TENDSTR),dev->isCheckpointed));
-		
+
 	retval = yaffs_ReadCheckpointData(dev);
 
 	if(dev->isCheckpointed){
@@ -4570,7 +4570,7 @@ int yaffs_CheckpointRestore(yaffs_Device *dev)
 	}
 
 	T(YAFFS_TRACE_CHECKPOINT,(TSTR("restore exit: isCheckpointed %d"TENDSTR),dev->isCheckpointed));
-	
+
 	return retval;
 }
 
@@ -4606,7 +4606,7 @@ int yaffs_ReadDataFromFile(yaffs_Object * in, __u8 * buffer, loff_t offset,
 		chunk++;
 
 		/* OK now check for the curveball where the start and end are in
-		 * the same chunk.      
+		 * the same chunk.
 		 */
 		if ((start + n) < dev->nDataBytesPerChunk) {
 			nToCopy = n;
@@ -4763,7 +4763,7 @@ int yaffs_WriteDataToFile(yaffs_Object * in, const __u8 * buffer, loff_t offset,
 				yaffs_ChunkCache *cache;
 				/* If we can't find the data in the cache, then load the cache */
 				cache = yaffs_FindChunkCache(in, chunk);
-				
+
 				if (!cache
 				    && yaffs_CheckSpaceForAllocation(in->
 								     myDev)) {
@@ -4776,12 +4776,12 @@ int yaffs_WriteDataToFile(yaffs_Object * in, const __u8 * buffer, loff_t offset,
 								      cache->
 								      data);
 				}
-				else if(cache && 
+				else if(cache &&
 				        !cache->dirty &&
 					!yaffs_CheckSpaceForAllocation(in->myDev)){
 					/* Drop the cache if it was a read cache item and
 					 * no space check has been made for it.
-					 */ 
+					 */
 					 cache = NULL;
 				}
 
@@ -4945,7 +4945,7 @@ int yaffs_ResizeFile(yaffs_Object * in, loff_t newSize)
 	int oldFileSize = in->variant.fileVariant.fileSize;
 	int newSizeOfPartialChunk;
 	int newFullChunks;
-	
+
 	yaffs_Device *dev = in->myDev;
 
 	yaffs_AddrToChunk(dev, newSize, &newFullChunks, &newSizeOfPartialChunk);
@@ -4969,7 +4969,7 @@ int yaffs_ResizeFile(yaffs_Object * in, loff_t newSize)
 
 		if (newSizeOfPartialChunk != 0) {
 			int lastChunk = 1 + newFullChunks;
-			
+
 			__u8 *localBuffer = yaffs_GetTempBuffer(dev, __LINE__);
 
 			/* Got to read and rewrite the last chunk with its new size and zero pad */
@@ -4993,8 +4993,8 @@ int yaffs_ResizeFile(yaffs_Object * in, loff_t newSize)
 		in->variant.fileVariant.fileSize = newSize;
 	}
 
-		
-	
+
+
 	/* Write a new object header.
 	 * show we've shrunk the file, if need be
 	 * Do this only if the file is not in the deleted directories.
@@ -5313,7 +5313,7 @@ static void yaffs_HardlinkFixup(yaffs_Device *dev, yaffs_Object *hardList)
 {
 	yaffs_Object *hl;
 	yaffs_Object *in;
-	
+
 	while (hardList) {
 		hl = hardList;
 		hardList = (yaffs_Object *) (hardList->hardLinks.next);
@@ -5376,9 +5376,9 @@ static int yaffs_Scan(yaffs_Device * dev)
 	yaffs_Object *in;
 	yaffs_Object *parent;
 	int nBlocks = dev->internalEndBlock - dev->internalStartBlock + 1;
-	
+
 	int alloc_failed = 0;
-	
+
 
 	__u8 *chunkData;
 
@@ -5389,9 +5389,9 @@ static int yaffs_Scan(yaffs_Device * dev)
 		  (TSTR("yaffs_Scan is not for YAFFS2!" TENDSTR)));
 		return YAFFS_FAIL;
 	}
-	
+
 	//TODO  Throw all the yaffs2 stuuf out of yaffs_Scan since it is only for yaffs1 format.
-	
+
 	T(YAFFS_TRACE_SCAN,
 	  (TSTR("yaffs_Scan starts  intstartblk %d intendblk %d..." TENDSTR),
 	   dev->internalStartBlock, dev->internalEndBlock));
@@ -5520,7 +5520,7 @@ static int yaffs_Scan(yaffs_Device * dev)
 				/*T((" %d %d deleted\n",blk,c)); */
 			} else if (!tags.chunkUsed) {
 				/* An unassigned chunk in the block
-				 * This means that either the block is empty or 
+				 * This means that either the block is empty or
 				 * this is the one being allocated from
 				 */
 
@@ -5537,9 +5537,9 @@ static int yaffs_Scan(yaffs_Device * dev)
 					state = YAFFS_BLOCK_STATE_ALLOCATING;
 					dev->allocationBlock = blk;
 					dev->allocationPage = c;
-					dev->allocationBlockFinder = blk;	
+					dev->allocationBlockFinder = blk;
 					/* Set it to here to encourage the allocator to go forth from here. */
-					
+
 					/* Yaffs2 sanity check:
 					 * This should be the one with the highest sequence number
 					 */
@@ -5569,7 +5569,7 @@ static int yaffs_Scan(yaffs_Device * dev)
 				/* PutChunkIntoFile checks for a clash (two data chunks with
 				 * the same chunkId).
 				 */
-				 
+
 				if(!in)
 					alloc_failed = 1;
 
@@ -5577,11 +5577,11 @@ static int yaffs_Scan(yaffs_Device * dev)
 					if(!yaffs_PutChunkIntoFile(in, tags.chunkId, chunk,1))
 						alloc_failed = 1;
 				}
-				
+
 				endpos =
 				    (tags.chunkId - 1) * dev->nDataBytesPerChunk +
 				    tags.byteCount;
-				if (in && 
+				if (in &&
 				    in->variantType == YAFFS_OBJECT_TYPE_FILE
 				    && in->variant.fileVariant.scannedFileSize <
 				    endpos) {
@@ -5613,7 +5613,7 @@ static int yaffs_Scan(yaffs_Device * dev)
 							      tags.objectId);
 				if (in && in->variantType != oh->type) {
 					/* This should not happen, but somehow
-					 * Wev'e ended up with an objectId that has been reused but not yet 
+					 * Wev'e ended up with an objectId that has been reused but not yet
 					 * deleted, and worse still it has changed type. Delete the old object.
 					 */
 
@@ -5629,7 +5629,7 @@ static int yaffs_Scan(yaffs_Device * dev)
 
 				if(!in)
 					alloc_failed = 1;
-					
+
 				if (in && oh->shadowsObject > 0) {
 					yaffs_HandleShadowedObject(dev,
 								   oh->
@@ -5752,11 +5752,11 @@ static int yaffs_Scan(yaffs_Device * dev)
 					 * Since we might scan a hardlink before its equivalent object is scanned
 					 * we put them all in a list.
 					 * After scanning is complete, we should have all the objects, so we run through this
-					 * list and fix up all the chains.              
+					 * list and fix up all the chains.
 					 */
 
 					switch (in->variantType) {
-					case YAFFS_OBJECT_TYPE_UNKNOWN:	
+					case YAFFS_OBJECT_TYPE_UNKNOWN:
 						/* Todo got a problem */
 						break;
 					case YAFFS_OBJECT_TYPE_FILE:
@@ -5791,7 +5791,7 @@ static int yaffs_Scan(yaffs_Device * dev)
 					case YAFFS_OBJECT_TYPE_SPECIAL:
 						/* Do nothing */
 						break;
-					case YAFFS_OBJECT_TYPE_SYMLINK:	
+					case YAFFS_OBJECT_TYPE_SYMLINK:
 						in->variant.symLinkVariant.alias =
 						    yaffs_CloneString(oh->alias);
 						if(!in->variant.symLinkVariant.alias)
@@ -5826,11 +5826,11 @@ static int yaffs_Scan(yaffs_Device * dev)
 	if (blockIndex) {
 		YFREE(blockIndex);
 	}
-	
-	
+
+
 	/* Ok, we've done all the scanning.
 	 * Fix up the hard link chains.
-	 * We should now have scanned all the objects, now it's time to add these 
+	 * We should now have scanned all the objects, now it's time to add these
 	 * hardlinks.
 	 */
 
@@ -5860,9 +5860,9 @@ static int yaffs_Scan(yaffs_Device * dev)
 	if(alloc_failed){
 		return YAFFS_FAIL;
 	}
-	
+
 	T(YAFFS_TRACE_SCAN, (TSTR("yaffs_Scan ends" TENDSTR)));
-	
+
 
 	return YAFFS_OK;
 }
@@ -5878,7 +5878,7 @@ static void yaffs_CheckObjectDetailsLoaded(yaffs_Object *in)
 
 	if(!in)
 		return;
-		
+
 #if 0
 	T(YAFFS_TRACE_SCAN,(TSTR("details for object %d %s loaded" TENDSTR),
 		in->objectId,
@@ -5890,7 +5890,7 @@ static void yaffs_CheckObjectDetailsLoaded(yaffs_Object *in)
 		chunkData = yaffs_GetTempBuffer(dev, __LINE__);
 
 		result = yaffs_ReadChunkWithTagsFromNAND(dev,in->chunkId,chunkData,&tags);
-		oh = (yaffs_ObjectHeader *) chunkData;		
+		oh = (yaffs_ObjectHeader *) chunkData;
 
 		in->yst_mode = oh->yst_mode;
 #ifdef CONFIG_YAFFS_WINCE
@@ -5907,17 +5907,17 @@ static void yaffs_CheckObjectDetailsLoaded(yaffs_Object *in)
 		in->yst_mtime = oh->yst_mtime;
 		in->yst_ctime = oh->yst_ctime;
 		in->yst_rdev = oh->yst_rdev;
-		
+
 #endif
 		yaffs_SetObjectName(in, oh->name);
-		
+
 		if(in->variantType == YAFFS_OBJECT_TYPE_SYMLINK){
 			 in->variant.symLinkVariant.alias =
 						    yaffs_CloneString(oh->alias);
 			if(!in->variant.symLinkVariant.alias)
 				alloc_failed = 1; /* Not returned to caller */
 		}
-						    
+
 		yaffs_ReleaseTempBuffer(dev,chunkData, __LINE__);
 	}
 }
@@ -5945,13 +5945,13 @@ static int yaffs_ScanBackwards(yaffs_Device * dev)
 	int nBlocks = dev->internalEndBlock - dev->internalStartBlock + 1;
 	int itsUnlinked;
 	__u8 *chunkData;
-	
+
 	int fileSize;
 	int isShrink;
 	int foundChunksInBlock;
 	int equivalentObjectId;
 	int alloc_failed = 0;
-	
+
 
 	yaffs_BlockIndex *blockIndex = NULL;
 	int altBlockIndex = 0;
@@ -5971,20 +5971,20 @@ static int yaffs_ScanBackwards(yaffs_Device * dev)
 	dev->sequenceNumber = YAFFS_LOWEST_SEQUENCE_NUMBER;
 
 	blockIndex = YMALLOC(nBlocks * sizeof(yaffs_BlockIndex));
-	
+
 	if(!blockIndex) {
 		blockIndex = YMALLOC_ALT(nBlocks * sizeof(yaffs_BlockIndex));
 		altBlockIndex = 1;
 	}
-	
+
 	if(!blockIndex) {
 		T(YAFFS_TRACE_SCAN,
 		  (TSTR("yaffs_Scan() could not allocate block index!" TENDSTR)));
 		return YAFFS_FAIL;
 	}
-	
+
 	dev->blocksInCheckpoint = 0;
-	
+
 	chunkData = yaffs_GetTempBuffer(dev, __LINE__);
 
 	/* Scan all the blocks to determine their state */
@@ -6001,15 +6001,15 @@ static int yaffs_ScanBackwards(yaffs_Device * dev)
 
 		if(bi->sequenceNumber == YAFFS_SEQUENCE_CHECKPOINT_DATA)
 			bi->blockState = state = YAFFS_BLOCK_STATE_CHECKPOINT;
-			
+
 		T(YAFFS_TRACE_SCAN_DEBUG,
 		  (TSTR("Block scanning block %d state %d seq %d" TENDSTR), blk,
 		   state, sequenceNumber));
 
-		
+
 		if(state == YAFFS_BLOCK_STATE_CHECKPOINT){
 			dev->blocksInCheckpoint++;
-			
+
 		} else if (state == YAFFS_BLOCK_STATE_DEAD) {
 			T(YAFFS_TRACE_BAD_BLOCKS,
 			  (TSTR("block %d is bad" TENDSTR), blk));
@@ -6058,7 +6058,7 @@ static int yaffs_ScanBackwards(yaffs_Device * dev)
 #else
 	{
 	 	/* Dungy old bubble sort... */
-	 	
+
 		yaffs_BlockIndex temp;
 		int i;
 		int j;
@@ -6094,22 +6094,22 @@ static int yaffs_ScanBackwards(yaffs_Device * dev)
 		blk = blockIndex[blockIterator].block;
 
 		bi = yaffs_GetBlockInfo(dev, blk);
-		
-		
+
+
 		state = bi->blockState;
 
 		deleted = 0;
 
 		/* For each chunk in each block that needs scanning.... */
 		foundChunksInBlock = 0;
-		for (c = dev->nChunksPerBlock - 1; 
+		for (c = dev->nChunksPerBlock - 1;
 		     !alloc_failed && c >= 0 &&
 		     (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING ||
 		      state == YAFFS_BLOCK_STATE_ALLOCATING); c--) {
-			/* Scan backwards... 
+			/* Scan backwards...
 			 * Read the tags and decide what to do
 			 */
-			
+
 			chunk = blk * dev->nChunksPerBlock + c;
 
 			result = yaffs_ReadChunkWithTagsFromNAND(dev, chunk, NULL,
@@ -6123,14 +6123,14 @@ static int yaffs_ScanBackwards(yaffs_Device * dev)
 				 * it is a chunk that was skipped due to failing the erased
 				 * check. Just skip it so that it can be deleted.
 				 * But, more typically, We get here when this is an unallocated
-				 * chunk and his means that either the block is empty or 
+				 * chunk and his means that either the block is empty or
 				 * this is the one being allocated from
 				 */
 
 				if(foundChunksInBlock)
 				{
 					/* This is a chunk that was skipped due to failing the erased check */
-					
+
 				} else if (c == 0) {
 					/* We're looking at the first chunk in the block so the block is unused */
 					state = YAFFS_BLOCK_STATE_EMPTY;
@@ -6140,7 +6140,7 @@ static int yaffs_ScanBackwards(yaffs_Device * dev)
 					    state == YAFFS_BLOCK_STATE_ALLOCATING) {
 					    	if(dev->sequenceNumber == bi->sequenceNumber) {
 							/* this is the block being allocated from */
-					    	
+
 							T(YAFFS_TRACE_SCAN,
 							  (TSTR
 							   (" Allocating from %d %d"
@@ -6149,34 +6149,34 @@ static int yaffs_ScanBackwards(yaffs_Device * dev)
 							state = YAFFS_BLOCK_STATE_ALLOCATING;
 							dev->allocationBlock = blk;
 							dev->allocationPage = c;
-							dev->allocationBlockFinder = blk;	
+							dev->allocationBlockFinder = blk;
 						}
 						else {
 							/* This is a partially written block that is not
 							 * the current allocation block. This block must have
 							 * had a write failure, so set up for retirement.
 							 */
-						  
+
 							 bi->needsRetiring = 1;
 							 bi->gcPrioritise = 1;
-							 						 
+
 							 T(YAFFS_TRACE_ALWAYS,
 							 (TSTR("Partially written block %d being set for retirement" TENDSTR),
 							 blk));
 						}
 
 					}
-					 
+
 				}
 
 				dev->nFreeChunks++;
-				
+
 			} else if (tags.chunkId > 0) {
 				/* chunkId > 0 so it is a data chunk... */
 				unsigned int endpos;
 				__u32 chunkBase =
 				    (tags.chunkId - 1) * dev->nDataBytesPerChunk;
-								
+
 				foundChunksInBlock = 1;
 
 
@@ -6191,7 +6191,7 @@ static int yaffs_ScanBackwards(yaffs_Device * dev)
 					/* Out of memory */
 					alloc_failed = 1;
 				}
-				
+
 				if (in &&
 				    in->variantType == YAFFS_OBJECT_TYPE_FILE
 				    && chunkBase <
@@ -6202,14 +6202,14 @@ static int yaffs_ScanBackwards(yaffs_Device * dev)
 						alloc_failed = 1;
 					}
 
-					/* File size is calculated by looking at the data chunks if we have not 
+					/* File size is calculated by looking at the data chunks if we have not
 					 * seen an object header yet. Stop this practice once we find an object header.
 					 */
 					endpos =
 					    (tags.chunkId -
 					     1) * dev->nDataBytesPerChunk +
 					    tags.byteCount;
-					    
+
 					if (!in->valid &&	/* have not got an object header yet */
 					    in->variant.fileVariant.
 					    scannedFileSize < endpos) {
@@ -6255,7 +6255,7 @@ static int yaffs_ScanBackwards(yaffs_Device * dev)
 				    ) {
 
 					/* If we don't have  valid info then we need to read the chunk
-					 * TODO In future we can probably defer reading the chunk and 
+					 * TODO In future we can probably defer reading the chunk and
 					 * living with invalid data until needed.
 					 */
 
@@ -6283,12 +6283,12 @@ static int yaffs_ScanBackwards(yaffs_Device * dev)
 
 				if (in->valid) {
 					/* We have already filled this one.
-					 * We have a duplicate that will be discarded, but 
+					 * We have a duplicate that will be discarded, but
 					 * we first have to suck out resize info if it is a file.
 					 */
 
-					if ((in->variantType == YAFFS_OBJECT_TYPE_FILE) && 
-					     ((oh && 
+					if ((in->variantType == YAFFS_OBJECT_TYPE_FILE) &&
+					     ((oh &&
 					       oh-> type == YAFFS_OBJECT_TYPE_FILE)||
 					      (tags.extraHeaderInfoAvailable  &&
 					       tags.extraObjectType == YAFFS_OBJECT_TYPE_FILE))
@@ -6339,7 +6339,7 @@ static int yaffs_ScanBackwards(yaffs_Device * dev)
 				     YAFFS_OBJECTID_LOSTNFOUND)) {
 					/* We only load some info, don't fiddle with directory structure */
 					in->valid = 1;
-					
+
 					if(oh) {
 						in->variantType = oh->type;
 
@@ -6358,13 +6358,13 @@ static int yaffs_ScanBackwards(yaffs_Device * dev)
 						in->yst_mtime = oh->yst_mtime;
 						in->yst_ctime = oh->yst_ctime;
 						in->yst_rdev = oh->yst_rdev;
-		
+
 #endif
 					} else {
 						in->variantType = tags.extraObjectType;
 						in->lazyLoaded = 1;
 					}
-						
+
 					in->chunkId = chunk;
 
 				} else if (!in->valid) {
@@ -6372,7 +6372,7 @@ static int yaffs_ScanBackwards(yaffs_Device * dev)
 
 					in->valid = 1;
 					in->chunkId = chunk;
-					
+
 					if(oh) {
 						in->variantType = oh->type;
 
@@ -6393,12 +6393,12 @@ static int yaffs_ScanBackwards(yaffs_Device * dev)
 						in->yst_rdev = oh->yst_rdev;
 #endif
 
-						if (oh->shadowsObject > 0) 
+						if (oh->shadowsObject > 0)
 							yaffs_HandleShadowedObject(dev,
 									   oh->
 									   shadowsObject,
 									   1);
-					
+
 
 						yaffs_SetObjectName(in, oh->name);
 						parent =
@@ -6466,11 +6466,11 @@ static int yaffs_ScanBackwards(yaffs_Device * dev)
 					 * Since we might scan a hardlink before its equivalent object is scanned
 					 * we put them all in a list.
 					 * After scanning is complete, we should have all the objects, so we run
-					 * through this list and fix up all the chains.              
+					 * through this list and fix up all the chains.
 					 */
 
 					switch (in->variantType) {
-					case YAFFS_OBJECT_TYPE_UNKNOWN:	
+					case YAFFS_OBJECT_TYPE_UNKNOWN:
 						/* Todo got a problem */
 						break;
 					case YAFFS_OBJECT_TYPE_FILE:
@@ -6479,7 +6479,7 @@ static int yaffs_ScanBackwards(yaffs_Device * dev)
 						    scannedFileSize < fileSize) {
 							/* This covers the case where the file size is greater
 							 * than where the data is
-							 * This will happen if the file is resized to be larger 
+							 * This will happen if the file is resized to be larger
 							 * than its current data extents.
 							 */
 							in->variant.fileVariant.fileSize = fileSize;
@@ -6520,7 +6520,7 @@ static int yaffs_ScanBackwards(yaffs_Device * dev)
 					}
 
 				}
-				
+
 			}
 
 		} /* End of scanning for each chunk */
@@ -6541,19 +6541,19 @@ static int yaffs_ScanBackwards(yaffs_Device * dev)
 
 	}
 
-	if (altBlockIndex) 
+	if (altBlockIndex)
 		YFREE_ALT(blockIndex);
 	else
 		YFREE(blockIndex);
-	
+
 	/* Ok, we've done all the scanning.
 	 * Fix up the hard link chains.
-	 * We should now have scanned all the objects, now it's time to add these 
+	 * We should now have scanned all the objects, now it's time to add these
 	 * hardlinks.
 	 */
 	yaffs_HardlinkFixup(dev,hardList);
-	
-	
+
+
 	/*
 	*  Sort out state of unlinked and deleted objects.
 	*/
@@ -6586,7 +6586,7 @@ static int yaffs_ScanBackwards(yaffs_Device * dev)
 	}
 
 	yaffs_ReleaseTempBuffer(dev, chunkData, __LINE__);
-	
+
 	if(alloc_failed){
 		return YAFFS_FAIL;
 	}
@@ -6601,10 +6601,10 @@ static int yaffs_ScanBackwards(yaffs_Device * dev)
 static void yaffs_RemoveObjectFromDirectory(yaffs_Object * obj)
 {
 	yaffs_Device *dev = obj->myDev;
-	
+
 	if(dev && dev->removeObjectCallback)
 		dev->removeObjectCallback(obj);
-	   
+
 	list_del_init(&obj->siblings);
 	obj->parent = NULL;
 }
@@ -6682,7 +6682,7 @@ yaffs_Object *yaffs_FindObjectByName(yaffs_Object * directory,
 	list_for_each(i, &directory->variant.directoryVariant.children) {
 		if (i) {
 			l = list_entry(i, yaffs_Object, siblings);
-			
+
 			yaffs_CheckObjectDetailsLoaded(l);
 
 			/* Special case for lost-n-found */
@@ -6690,7 +6690,7 @@ yaffs_Object *yaffs_FindObjectByName(yaffs_Object * directory,
 				if (yaffs_strcmp(name, YAFFS_LOSTNFOUND_NAME) == 0) {
 					return l;
 				}
-			} else if (yaffs_SumCompare(l->sum, sum) || l->chunkId <= 0)	
+			} else if (yaffs_SumCompare(l->sum, sum) || l->chunkId <= 0)
 			{
 				/* LostnFound cunk called Objxxx
 				 * Do a real check
@@ -6762,7 +6762,7 @@ yaffs_Object *yaffs_GetEquivalentObject(yaffs_Object * obj)
 int yaffs_GetObjectName(yaffs_Object * obj, YCHAR * name, int buffSize)
 {
 	memset(name, 0, buffSize * sizeof(YCHAR));
-	
+
 	yaffs_CheckObjectDetailsLoaded(obj);
 
 	if (obj->objectId == YAFFS_OBJECTID_LOSTNFOUND) {
@@ -6994,13 +6994,13 @@ static int yaffs_CheckDevFunctions(const yaffs_Device * dev)
 static int yaffs_CreateInitialDirectories(yaffs_Device *dev)
 {
 	/* Initialise the unlinked, deleted, root and lost and found directories */
-	
+
 	dev->lostNFoundDir = dev->rootDir =  NULL;
 	dev->unlinkedDir = dev->deletedDir = NULL;
 
 	dev->unlinkedDir =
 	    yaffs_CreateFakeDirectory(dev, YAFFS_OBJECTID_UNLINKED, S_IFDIR);
-	
+
 	dev->deletedDir =
 	    yaffs_CreateFakeDirectory(dev, YAFFS_OBJECTID_DELETED, S_IFDIR);
 
@@ -7010,12 +7010,12 @@ static int yaffs_CreateInitialDirectories(yaffs_Device *dev)
 	dev->lostNFoundDir =
 	    yaffs_CreateFakeDirectory(dev, YAFFS_OBJECTID_LOSTNFOUND,
 				      YAFFS_LOSTNFOUND_MODE | S_IFDIR);
-	
+
 	if(dev->lostNFoundDir && dev->rootDir && dev->unlinkedDir && dev->deletedDir){
 		yaffs_AddObjectToDirectory(dev->rootDir, dev->lostNFoundDir);
 		return YAFFS_OK;
 	}
-	
+
 	return YAFFS_FAIL;
 }
 
@@ -7049,12 +7049,12 @@ int yaffs_GutsInitialise(yaffs_Device * dev)
 
 	/* Check geometry parameters. */
 
-	if ((dev->isYaffs2 && dev->nDataBytesPerChunk < 1024) || 
-	    (!dev->isYaffs2 && dev->nDataBytesPerChunk != 512) || 
-	     dev->nChunksPerBlock < 2 || 
-	     dev->nReservedBlocks < 2 || 
-	     dev->internalStartBlock <= 0 || 
-	     dev->internalEndBlock <= 0 || 
+	if ((dev->isYaffs2 && dev->nDataBytesPerChunk < 1024) ||
+	    (!dev->isYaffs2 && dev->nDataBytesPerChunk != 512) ||
+	     dev->nChunksPerBlock < 2 ||
+	     dev->nReservedBlocks < 2 ||
+	     dev->internalStartBlock <= 0 ||
+	     dev->internalEndBlock <= 0 ||
 	     dev->internalEndBlock <= (dev->internalStartBlock + dev->nReservedBlocks + 2)	// otherwise it is too small
 	    ) {
 		T(YAFFS_TRACE_ALWAYS,
@@ -7100,9 +7100,9 @@ int yaffs_GutsInitialise(yaffs_Device * dev)
 
 
 	/* OK now calculate a few things for the device */
-	
+
 	/*
-	 *  Calculate all the chunk size manipulation numbers: 
+	 *  Calculate all the chunk size manipulation numbers:
 	 */
 	 /* Start off assuming it is a power of 2 */
 	 dev->chunkShift = ShiftDiv(dev->nDataBytesPerChunk);
@@ -7121,7 +7121,7 @@ int yaffs_GutsInitialise(yaffs_Device * dev)
 		dev->chunkShift = 0;
 		dev->chunkMask = 0;
 	}
-	 	
+
 
 	/*
 	 * Calculate chunkGroupBits.
@@ -7129,9 +7129,9 @@ int yaffs_GutsInitialise(yaffs_Device * dev)
 	 */
 
 	x = dev->nChunksPerBlock * (dev->internalEndBlock + 1);
-	
+
 	bits = ShiftsGE(x);
-	
+
 	/* Set up tnode width if wide tnodes are enabled. */
 	if(!dev->wideTnodesDisabled){
 		/* bits must be even so that we end up with 32-bit words */
@@ -7144,20 +7144,20 @@ int yaffs_GutsInitialise(yaffs_Device * dev)
 	}
 	else
 		dev->tnodeWidth = 16;
- 
+
 	dev->tnodeMask = (1<<dev->tnodeWidth)-1;
-		
+
 	/* Level0 Tnodes are 16 bits or wider (if wide tnodes are enabled),
 	 * so if the bitwidth of the
 	 * chunk range we're using is greater than 16 we need
 	 * to figure out chunk shift and chunkGroupSize
 	 */
-		 
+
 	if (bits <= dev->tnodeWidth)
 		dev->chunkGroupBits = 0;
 	else
 		dev->chunkGroupBits = bits - dev->tnodeWidth;
-		
+
 
 	dev->chunkGroupSize = 1 << dev->chunkGroupBits;
 
@@ -7195,11 +7195,11 @@ int yaffs_GutsInitialise(yaffs_Device * dev)
 	/* Initialise temporary buffers and caches. */
 	if(!yaffs_InitialiseTempBuffers(dev))
 		init_failed = 1;
-	
+
 	dev->srCache = NULL;
 	dev->gcCleanupList = NULL;
-	
-	
+
+
 	if (!init_failed &&
 	    dev->nShortOpCaches > 0) {
 		int i;
@@ -7211,10 +7211,10 @@ int yaffs_GutsInitialise(yaffs_Device * dev)
 		}
 
 		buf = dev->srCache =  YMALLOC(srCacheBytes);
-		    
+
 		if(dev->srCache)
 			memset(dev->srCache,0,srCacheBytes);
-		   
+
 		for (i = 0; i < dev->nShortOpCaches && buf; i++) {
 			dev->srCache[i].object = NULL;
 			dev->srCache[i].lastUse = 0;
@@ -7223,12 +7223,12 @@ int yaffs_GutsInitialise(yaffs_Device * dev)
 		}
 		if(!buf)
 			init_failed = 1;
-			
+
 		dev->srLastUse = 0;
 	}
 
 	dev->cacheHits = 0;
-	
+
 	if(!init_failed){
 		dev->gcCleanupList = YMALLOC(dev->nChunksPerBlock * sizeof(__u32));
 		if(!dev->gcCleanupList)
@@ -7240,7 +7240,7 @@ int yaffs_GutsInitialise(yaffs_Device * dev)
 	}
 	if(!init_failed && !yaffs_InitialiseBlocks(dev))
 		init_failed = 1;
-		
+
 	yaffs_InitialiseTnodes(dev);
 	yaffs_InitialiseObjects(dev);
 
@@ -7256,14 +7256,14 @@ int yaffs_GutsInitialise(yaffs_Device * dev)
 				  (TSTR("yaffs: restored from checkpoint" TENDSTR)));
 			} else {
 
-				/* Clean up the mess caused by an aborted checkpoint load 
-				 * and scan backwards. 
+				/* Clean up the mess caused by an aborted checkpoint load
+				 * and scan backwards.
 				 */
 				yaffs_DeinitialiseBlocks(dev);
 				yaffs_DeinitialiseTnodes(dev);
 				yaffs_DeinitialiseObjects(dev);
-				
-			
+
+
 				dev->nErasedBlocks = 0;
 				dev->nFreeChunks = 0;
 				dev->allocationBlock = -1;
@@ -7275,7 +7275,7 @@ int yaffs_GutsInitialise(yaffs_Device * dev)
 
 				if(!init_failed && !yaffs_InitialiseBlocks(dev))
 					init_failed = 1;
-					
+
 				yaffs_InitialiseTnodes(dev);
 				yaffs_InitialiseObjects(dev);
 
@@ -7289,7 +7289,7 @@ int yaffs_GutsInitialise(yaffs_Device * dev)
 			if(!yaffs_Scan(dev))
 				init_failed = 1;
 	}
-		
+
 	if(init_failed){
 		/* Clean up the mess */
 		T(YAFFS_TRACE_TRACING,
@@ -7310,7 +7310,7 @@ int yaffs_GutsInitialise(yaffs_Device * dev)
 
 	yaffs_VerifyFreeChunks(dev);
 	yaffs_VerifyBlocks(dev);
-	
+
 
 	T(YAFFS_TRACE_TRACING,
 	  (TSTR("yaffs: yaffs_GutsInitialise() done.\n" TENDSTR)));
@@ -7394,7 +7394,7 @@ int yaffs_GetNumberOfFreeChunks(yaffs_Device * dev)
 #endif
 
 	nFree += dev->nDeletedFiles;
-	
+
 	/* Now count the number of dirty chunks in the cache and subtract those */
 
 	{
@@ -7408,12 +7408,12 @@ int yaffs_GetNumberOfFreeChunks(yaffs_Device * dev)
 	nFree -= nDirtyCacheChunks;
 
 	nFree -= ((dev->nReservedBlocks + 1) * dev->nChunksPerBlock);
-	
+
 	/* Now we figure out how much to reserve for the checkpoint and report that... */
 	blocksForCheckpoint = dev->nCheckpointReservedBlocks - dev->blocksInCheckpoint;
 	if(blocksForCheckpoint < 0)
 		blocksForCheckpoint = 0;
-		
+
 	nFree -= (blocksForCheckpoint * dev->nChunksPerBlock);
 
 	if (nFree < 0)
@@ -7429,10 +7429,10 @@ static void yaffs_VerifyFreeChunks(yaffs_Device * dev)
 {
 	int counted;
 	int difference;
-	
+
 	if(yaffs_SkipVerification(dev))
 		return;
-	
+
 	counted = yaffs_CountFreeChunks(dev);
 
 	difference = dev->nFreeChunks - counted;