From: Julia Lawall <julia@xxxxxxx> Use kmemdup when some other buffer is immediately copied into the allocated region. A simplified version of the semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression from,to,size,flag; statement S; @@ - to = \(kmalloc\|kzalloc\)(size,flag); + to = kmemdup(from,size,flag); if (to==NULL || ...) S - memcpy(to, from, size); // </smpl> Signed-off-by: Julia Lawall <julia@xxxxxxx> --- drivers/mtd/mtdconcat.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff -u -p a/drivers/mtd/mtdconcat.c b/drivers/mtd/mtdconcat.c --- a/drivers/mtd/mtdconcat.c +++ b/drivers/mtd/mtdconcat.c @@ -183,10 +183,9 @@ concat_writev(struct mtd_info *mtd, cons } /* make a copy of vecs */ - vecs_copy = kmalloc(sizeof(struct kvec) * count, GFP_KERNEL); + vecs_copy = kmemdup(vecs, sizeof(struct kvec) * count, GFP_KERNEL); if (!vecs_copy) return -ENOMEM; - memcpy(vecs_copy, vecs, sizeof(struct kvec) * count); entry_low = 0; for (i = 0; i < concat->num_subdev; i++) { -- To unsubscribe from this list: send the line "unsubscribe kernel-janitors" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
