Commit 7fd5aecc authored by Richard Purdie's avatar Richard Purdie Committed by Linus Torvalds

[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: default avatarRichard Purdie <rpurdie@rpsys.net>
Cc: David Woodhouse <dwmw2@infradead.org>
Acked-by: default avatarJosh Boyer <jwboyer@gmail.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 6946bd63
......@@ -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;
}
......
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