kernel/cred.c: use kmem_cache_free

Author: Julia Lawall <julia@diku.dk>

Free memory allocated using kmem_cache_zalloc using kmem_cache_free rather
than kfree.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// 
@@
expression x,E,c;
@@

 x = \(kmem_cache_alloc\|kmem_cache_zalloc\|kmem_cache_alloc_node\)(c,...)
 ... when != x = E
     when != &x
?-kfree(x)
+kmem_cache_free(c,x)
// 

Signed-off-by: Julia Lawall 
Acked-by: David Howells 
Cc: James Morris 
Cc: Steve Dickson 
Cc: 
Signed-off-by: Andrew Morton 
Signed-off-by: James Morris 

---
 kernel/cred.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
 
diff --git a/kernel/cred.c b/kernel/cred.c
index dd76cfe..1ed8ca1 100644
--- a/kernel/cred.c
+++ b/kernel/cred.c
@@ -224,7 +224,7 @@ struct cred *cred_alloc_blank(void)
 #ifdef CONFIG_KEYS
 	new->tgcred = kzalloc(sizeof(*new->tgcred), GFP_KERNEL);
 	if (!new->tgcred) {
-		kfree(new);
+		kmem_cache_free(cred_jar, new);
 		return NULL;
 	}
 	atomic_set(&new->tgcred->usage, 1);