[PATCH] Transform kmem_cache_alloc()+memset(0) -> kmem_cache_zalloc().

Replace appropriate pairs of "kmem_cache_alloc()" + "memset(0)" with the
corresponding "kmem_cache_zalloc()" call.

Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Andi Kleen <ak@muc.de>
Cc: Roland McGrath <roland@redhat.com>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: Greg KH <greg@kroah.com>
Acked-by: Joel Becker <Joel.Becker@oracle.com>
Cc: Steven Whitehouse <swhiteho@redhat.com>
Cc: Jan Kara <jack@ucw.cz>
Cc: Michael Halcrow <mhalcrow@us.ibm.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Stephen Smalley <sds@tycho.nsa.gov>
Cc: James Morris <jmorris@namei.org>
Cc: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

3 files changed, 3 insertions, 6 deletions

diff --git a/security/selinux/avc.c b/security/selinux/avc.c
index e7c0b5e2066b..da8caf10ef97 100644
--- a/security/selinux/avc.c
+++ b/security/selinux/avc.c
@@ -332,11 +332,10 @@ static struct avc_node *avc_alloc_node(void)
 {
         struct avc_node *node;
 
-        node = kmem_cache_alloc(avc_node_cachep, GFP_ATOMIC);
+        node = kmem_cache_zalloc(avc_node_cachep, GFP_ATOMIC);
         if (!node)
                 goto out;
 
-        memset(node, 0, sizeof(*node));
         INIT_RCU_HEAD(&node->rhead);
         INIT_LIST_HEAD(&node->list);
         atomic_set(&node->ae.used, 1);
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 65fb5e8ea941..9eeab82719a2 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -181,11 +181,10 @@ static int inode_alloc_security(struct inode *inode)
         struct task_security_struct *tsec = current->security;
         struct inode_security_struct *isec;
 
-        isec = kmem_cache_alloc(sel_inode_cache, GFP_KERNEL);
+        isec = kmem_cache_zalloc(sel_inode_cache, GFP_KERNEL);
         if (!isec)
                 return -ENOMEM;
 
-        memset(isec, 0, sizeof(*isec));
         mutex_init(&isec->lock);
         INIT_LIST_HEAD(&isec->list);
         isec->inode = inode;
diff --git a/security/selinux/ss/avtab.c b/security/selinux/ss/avtab.c
index ebb993c5c244..9142073319c0 100644
--- a/security/selinux/ss/avtab.c
+++ b/security/selinux/ss/avtab.c
@@ -36,10 +36,9 @@ avtab_insert_node(struct avtab *h, int hvalue,
                   struct avtab_key *key, struct avtab_datum *datum)
 {
         struct avtab_node * newnode;
-        newnode = kmem_cache_alloc(avtab_node_cachep, GFP_KERNEL);
+        newnode = kmem_cache_zalloc(avtab_node_cachep, GFP_KERNEL);
         if (newnode == NULL)
                 return NULL;
-        memset(newnode, 0, sizeof(struct avtab_node));
         newnode->key = *key;
         newnode->datum = *datum;
         if (prev) {