From 0059c7ed6c11254f214a07357bbf87296cde446f Mon Sep 17 00:00:00 2001 From: Robin Gong Date: Wed, 7 Nov 2018 22:19:07 +0800 Subject: [PATCH] MLK-20205-1: dmaengine: fsl-edma-v3: fix NULL pointer dereference Fix 'null pointer dereferences issue' reported by coverity(CID-1477441). Signed-off-by: Robin Gong Reviewed-by: Anson Huang (cherry picked from commit 5343c0018af0af2eb3bb90c5a75e765b851a2c12) --- drivers/dma/fsl-edma-v3.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/dma/fsl-edma-v3.c +++ b/drivers/dma/fsl-edma-v3.c @@ -419,7 +419,7 @@ static enum dma_status fsl_edma3_tx_stat if (fsl_chan->edesc && cookie == fsl_chan->edesc->vdesc.tx.cookie) txstate->residue = fsl_edma3_desc_residue(fsl_chan, vdesc, true); - else if (vdesc) + else if (fsl_chan->edesc && vdesc) txstate->residue = fsl_edma3_desc_residue(fsl_chan, vdesc, false); else