diff options
author | Julia Lawall <julia@diku.dk> | 2010-05-15 23:21:43 +0200 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-05-17 16:31:15 -0700 |
commit | 94002c07ff0e207a883519ccc35c0b5390b29331 (patch) | |
tree | b730a75ef2ad76d1e3a322e5982b30ca46b6c487 /drivers/staging/pohmelfs | |
parent | 96fe9ee2c2dfe3268961f3873ea6098b9b9f27c2 (diff) | |
download | linux-stable-94002c07ff0e207a883519ccc35c0b5390b29331.tar.gz linux-stable-94002c07ff0e207a883519ccc35c0b5390b29331.tar.bz2 linux-stable-94002c07ff0e207a883519ccc35c0b5390b29331.zip |
Staging: 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: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/staging/pohmelfs')
-rw-r--r-- | drivers/staging/pohmelfs/config.c | 16 |
1 files changed, 6 insertions, 10 deletions
diff --git a/drivers/staging/pohmelfs/config.c b/drivers/staging/pohmelfs/config.c index 9fdf2de347ea..8c8d1c282e7e 100644 --- a/drivers/staging/pohmelfs/config.c +++ b/drivers/staging/pohmelfs/config.c @@ -204,18 +204,18 @@ int pohmelfs_copy_crypto(struct pohmelfs_sb *psb) } if (g->hash_keysize) { - psb->hash_key = kmalloc(g->hash_keysize, GFP_KERNEL); + psb->hash_key = kmemdup(g->hash_key, g->hash_keysize, + GFP_KERNEL); if (!psb->hash_key) goto err_out_free_cipher_string; - memcpy(psb->hash_key, g->hash_key, g->hash_keysize); psb->hash_keysize = g->hash_keysize; } if (g->cipher_keysize) { - psb->cipher_key = kmalloc(g->cipher_keysize, GFP_KERNEL); + psb->cipher_key = kmemdup(g->cipher_key, g->cipher_keysize, + GFP_KERNEL); if (!psb->cipher_key) goto err_out_free_hash; - memcpy(psb->cipher_key, g->cipher_key, g->cipher_keysize); psb->cipher_keysize = g->cipher_keysize; } @@ -454,14 +454,12 @@ static int pohmelfs_crypto_hash_init(struct pohmelfs_config_group *g, struct poh g->hash_strlen = c->strlen; g->hash_keysize = c->keysize; - g->hash_key = kmalloc(c->keysize, GFP_KERNEL); + g->hash_key = kmemdup(key, c->keysize, GFP_KERNEL); if (!g->hash_key) { kfree(g->hash_string); return -ENOMEM; } - memcpy(g->hash_key, key, c->keysize); - return 0; } @@ -479,14 +477,12 @@ static int pohmelfs_crypto_cipher_init(struct pohmelfs_config_group *g, struct p g->cipher_strlen = c->strlen; g->cipher_keysize = c->keysize; - g->cipher_key = kmalloc(c->keysize, GFP_KERNEL); + g->cipher_key = kmemdup(key, c->keysize, GFP_KERNEL); if (!g->cipher_key) { kfree(g->cipher_string); return -ENOMEM; } - memcpy(g->cipher_key, key, c->keysize); - return 0; } |