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| author | Julia Lawall <julia@diku.dk> | 2010-05-15 23:23:31 +0200 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2010-05-15 23:07:01 +0100 |
| commit | d80f2666b5373f195deae57c9f33a5abb8053d37 (patch) | |
| tree | 9746b8e8e644de39568b94250bd7a7857c447585 /drivers/mtd/mtdconcat.c | |
| parent | abab7ebf8cc12a6bb03d06b103a49e97276168f0 (diff) | |
| download | lwn-d80f2666b5373f195deae57c9f33a5abb8053d37.tar.gz lwn-d80f2666b5373f195deae57c9f33a5abb8053d37.zip | |
drivers/mtd: Use kmemdup
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@diku.dk>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/mtd/mtdconcat.c')
| -rw-r--r-- | drivers/mtd/mtdconcat.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/mtd/mtdconcat.c b/drivers/mtd/mtdconcat.c index db6de74082ad..7e075621bbf4 100644 --- a/drivers/mtd/mtdconcat.c +++ b/drivers/mtd/mtdconcat.c @@ -183,10 +183,9 @@ concat_writev(struct mtd_info *mtd, const struct kvec *vecs, } /* 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++) { |