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mtd: concat: Use kmemdup_array instead of kmemdup for multiple allocation

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When we are allocating an array, using kmemdup_array() to take care about
multiplication and possible overflows.

Also it makes auditing the code easier.

Signed-off-by: Yan Zhen <yanzhen@vivo.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20240823110824.3895787-1-yanzhen@vivo.com
This commit is contained in:
Yan Zhen 2024-08-23 19:08:24 +08:00 committed by Miquel Raynal
parent e334c01df2
commit 175086cf4a
1 changed files with 1 additions and 1 deletions
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drivers/mtd/mtdconcat.c
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@ -204,7 +204,7 @@ concat_writev(struct mtd_info *mtd, const struct kvec *vecs,
} }
/* make a copy of vecs */ /* make a copy of vecs */
vecs_copy = kmemdup(vecs, sizeof(struct kvec) * count, GFP_KERNEL); vecs_copy = kmemdup_array(vecs, count, sizeof(struct kvec), GFP_KERNEL);
if (!vecs_copy) if (!vecs_copy)
return -ENOMEM; return -ENOMEM;