ceph: Use kmemdup rather than duplicating its implementation

Use kmemdup rather than duplicating its implementation

The semantic patch that makes this change is available
in scripts/coccinelle/api/memdup.cocci.

Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
Signed-off-by: Sage Weil <sage@newdream.net>

1 files changed, 1 insertions, 2 deletions

diff --git a/net/ceph/crypto.c b/net/ceph/crypto.c
index 85f3bc0a7062..b780cb7947dd 100644
--- a/net/ceph/crypto.c
+++ b/net/ceph/crypto.c
@@ -15,10 +15,9 @@ int ceph_crypto_key_clone(struct ceph_crypto_key *dst,
                           const struct ceph_crypto_key *src)
 {
         memcpy(dst, src, sizeof(struct ceph_crypto_key));
-        dst->key = kmalloc(src->len, GFP_NOFS);
+        dst->key = kmemdup(src->key, src->len, GFP_NOFS);
         if (!dst->key)
                 return -ENOMEM;
-        memcpy(dst->key, src->key, src->len);
         return 0;
 }