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author | 2006-08-27 01:23:33 -0700 | |
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committer | 2006-08-27 11:01:29 -0700 | |
commit | 7fd5aecc5d32882f8e29b14370e9ce2520e7e56f (patch) | |
tree | 99fb19859089dae6b5c139df1b563220ec80ffee /drivers/mtd | |
parent | [PATCH] lockdep: fix blkdev_open() warning (diff) | |
download | linux-7fd5aecc5d32882f8e29b14370e9ce2520e7e56f.tar.gz linux-7fd5aecc5d32882f8e29b14370e9ce2520e7e56f.tar.bz2 linux-7fd5aecc5d32882f8e29b14370e9ce2520e7e56f.zip |
[PATCH] mtd corruption fix
Read the return value before we release the nand device otherwise the
value can become corrupted by another user of chip->ops, ultimately
resulting in filesystem corruption.
Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Cc: David Woodhouse <dwmw2@infradead.org>
Acked-by: Josh Boyer <jwboyer@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/mtd')
-rw-r--r-- | drivers/mtd/nand/nand_base.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 62b861304e03..c8cbc00243fe 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -1093,9 +1093,10 @@ static int nand_read(struct mtd_info *mtd, loff_t from, size_t len, ret = nand_do_read_ops(mtd, from, &chip->ops); + *retlen = chip->ops.retlen; + nand_release_device(mtd); - *retlen = chip->ops.retlen; return ret; } @@ -1691,9 +1692,10 @@ static int nand_write(struct mtd_info *mtd, loff_t to, size_t len, ret = nand_do_write_ops(mtd, to, &chip->ops); + *retlen = chip->ops.retlen; + nand_release_device(mtd); - *retlen = chip->ops.retlen; return ret; } |