diff options
Diffstat (limited to 'dediprog.c')
| -rw-r--r-- | dediprog.c | 8 |
1 files changed, 4 insertions, 4 deletions
@@ -412,15 +412,15 @@ static int dediprog_spi_bulk_read(struct flashctx *flash, uint8_t *buf, unsigned struct libusb_transfer *transfers[DEDIPROG_ASYNC_TRANSFERS] = { NULL, }; struct libusb_transfer *transfer; + if (len == 0) + return 0; + if ((start % chunksize) || (len % chunksize)) { msg_perr("%s: Unaligned start=%i, len=%i! Please report a bug at flashrom@flashrom.org\n", __func__, start, len); return 1; } - if (len == 0) - return 0; - int command_packet_size; switch (protocol()) { case PROTOCOL_V1: @@ -504,7 +504,7 @@ static int dediprog_spi_read(struct flashctx *flash, uint8_t *buf, unsigned int int ret; /* chunksize must be 512, other sizes will NOT work at all. */ const unsigned int chunksize = 0x200; - unsigned int residue = start % chunksize ? chunksize - start % chunksize : 0; + unsigned int residue = start % chunksize ? min(len, chunksize - start % chunksize) : 0; unsigned int bulklen; dediprog_set_leds(LED_BUSY); |