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mtd: Fix mtd_check_oob_ops()

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The mtd_check_oob_ops() helper verifies if the operation defined by the
user is correct.

Fix the check that verifies if the entire requested area exists. This
check is too restrictive and will fail anytime the last data byte of the
very last page is included in an operation.

Fixes: 5cdd929da5 ("mtd: Add sanity checks in mtd_write/read_oob()")
Signed-off-by: Miquel Raynal <miquel.raynal@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
This commit is contained in:
Miquel Raynal 2017-12-18 08:26:28 +01:00 committed by Richard Weinberger
parent 9ec4c8e810
commit d82c368216
1 changed files with 1 additions and 1 deletions
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2
drivers/mtd/mtdcore.c
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@ -1114,7 +1114,7 @@ static int mtd_check_oob_ops(struct mtd_info *mtd, loff_t offs,
if (!ops->oobbuf)
ops->ooblen = 0;
if (offs < 0 || offs + ops->len >= mtd->size)
if (offs < 0 || offs + ops->len > mtd->size)
return -EINVAL;
if (ops->ooblen) {