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| author | Daniel Hobi <daniel.hobi@schmid-telecom.ch> | 2009-12-01 14:05:55 +0100 |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2009-12-07 22:38:16 +0100 |
| commit | 0ec81db20294efdad2454a753e79f1fe244a43ca (patch) | |
| tree | 865172014f4b0dff001d4f7dfedf52cfef27f80e /drivers/mtd | |
| parent | aabb8cb0818e285aeed0cfaf243635997e07554d (diff) | |
| download | u-boot-imx-0ec81db20294efdad2454a753e79f1fe244a43ca.zip u-boot-imx-0ec81db20294efdad2454a753e79f1fe244a43ca.tar.gz u-boot-imx-0ec81db20294efdad2454a753e79f1fe244a43ca.tar.bz2 | |
Fix computation in nand_util.c:get_len_incl_bad
Depending on offset, flash size and the number of bad blocks,
get_len_incl_bad may return a too small value which may lead to:
1) If there are no bad blocks, nand_{read,write}_skip_bad chooses the
bad block aware read/write code. This may hurt performance, but does
not have any adverse effects.
2) If there are bad blocks, the nand_{read,write}_skip_bad may choose
the bad block unaware read/write code (if len_incl_bad == *length)
which leads to corrupted data.
Signed-off-by: Daniel Hobi <daniel.hobi@schmid-telecom.ch>
Diffstat (limited to 'drivers/mtd')
| -rw-r--r-- | drivers/mtd/nand/nand_util.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/mtd/nand/nand_util.c b/drivers/mtd/nand/nand_util.c index bec9277..7085d42 100644 --- a/drivers/mtd/nand/nand_util.c +++ b/drivers/mtd/nand/nand_util.c @@ -452,7 +452,7 @@ static size_t get_len_incl_bad (nand_info_t *nand, loff_t offset, len_incl_bad += block_len; offset += block_len; - if ((offset + len_incl_bad) >= nand->size) + if (offset >= nand->size) break; } |