[PATCH] SELinux: convert to kzalloc

This patch converts SELinux code from kmalloc/memset to the new kazalloc
unction.  On i386, this results in a text saving of over 1K.

Before:
text    data     bss     dec     hex filename
86319    4642   15236  106197   19ed5 security/selinux/built-in.o

After:
text    data     bss     dec     hex filename
85278    4642   15236  105156   19ac4 security/selinux/built-in.o

Signed-off-by: James Morris <jmorris@namei.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 3 insertions, 6 deletions

diff --git a/security/selinux/ss/ebitmap.c b/security/selinux/ss/ebitmap.c
index d515154128cc..47024a6e1844 100644
--- a/security/selinux/ss/ebitmap.c
+++ b/security/selinux/ss/ebitmap.c
@@ -39,12 +39,11 @@ int ebitmap_cpy(struct ebitmap *dst, struct ebitmap *src)
         n = src->node;
         prev = NULL;
         while (n) {
-                new = kmalloc(sizeof(*new), GFP_ATOMIC);
+                new = kzalloc(sizeof(*new), GFP_ATOMIC);
                 if (!new) {
                         ebitmap_destroy(dst);
                         return -ENOMEM;
                 }
-                memset(new, 0, sizeof(*new));
                 new->startbit = n->startbit;
                 new->map = n->map;
                 new->next = NULL;
@@ -150,10 +149,9 @@ int ebitmap_set_bit(struct ebitmap *e, unsigned long bit, int value)
         if (!value)
                 return 0;
 
-        new = kmalloc(sizeof(*new), GFP_ATOMIC);
+        new = kzalloc(sizeof(*new), GFP_ATOMIC);
         if (!new)
                 return -ENOMEM;
-        memset(new, 0, sizeof(*new));
 
         new->startbit = bit & ~(MAPSIZE - 1);
         new->map = (MAPBIT << (bit - new->startbit));
@@ -232,13 +230,12 @@ int ebitmap_read(struct ebitmap *e, void *fp)
                         printk(KERN_ERR "security: ebitmap: truncated map\n");
                         goto bad;
                 }
-                n = kmalloc(sizeof(*n), GFP_KERNEL);
+                n = kzalloc(sizeof(*n), GFP_KERNEL);
                 if (!n) {
                         printk(KERN_ERR "security: ebitmap: out of memory\n");
                         rc = -ENOMEM;
                         goto bad;
                 }
-                memset(n, 0, sizeof(*n));
 
                 n->startbit = le32_to_cpu(buf[0]);