[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, 4 insertions, 8 deletions

diff --git a/security/selinux/ss/conditional.c b/security/selinux/ss/conditional.c
index daf288007460..d2737edba541 100644
--- a/security/selinux/ss/conditional.c
+++ b/security/selinux/ss/conditional.c
@@ -220,10 +220,9 @@ int cond_read_bool(struct policydb *p, struct hashtab *h, void *fp)
         u32 len;
         int rc;
 
-        booldatum = kmalloc(sizeof(struct cond_bool_datum), GFP_KERNEL);
+        booldatum = kzalloc(sizeof(struct cond_bool_datum), GFP_KERNEL);
         if (!booldatum)
                 return -1;
-        memset(booldatum, 0, sizeof(struct cond_bool_datum));
 
         rc = next_entry(buf, fp, sizeof buf);
         if (rc < 0)
@@ -321,10 +320,9 @@ static int cond_insertf(struct avtab *a, struct avtab_key *k, struct avtab_datum
                 goto err;
         }
 
-        list = kmalloc(sizeof(struct cond_av_list), GFP_KERNEL);
+        list = kzalloc(sizeof(struct cond_av_list), GFP_KERNEL);
         if (!list)
                 goto err;
-        memset(list, 0, sizeof(*list));
 
         list->node = node_ptr;
         if (!data->head)
@@ -414,11 +412,10 @@ static int cond_read_node(struct policydb *p, struct cond_node *node, void *fp)
                 if (rc < 0)
                         goto err;
 
-                expr = kmalloc(sizeof(struct cond_expr), GFP_KERNEL);
+                expr = kzalloc(sizeof(struct cond_expr), GFP_KERNEL);
                 if (!expr) {
                         goto err;
                 }
-                memset(expr, 0, sizeof(struct cond_expr));
 
                 expr->expr_type = le32_to_cpu(buf[0]);
                 expr->bool = le32_to_cpu(buf[1]);
@@ -460,10 +457,9 @@ int cond_read_list(struct policydb *p, void *fp)
         len = le32_to_cpu(buf[0]);
 
         for (i = 0; i < len; i++) {
-                node = kmalloc(sizeof(struct cond_node), GFP_KERNEL);
+                node = kzalloc(sizeof(struct cond_node), GFP_KERNEL);
                 if (!node)
                         goto err;
-                memset(node, 0, sizeof(struct cond_node));
 
                 if (cond_read_node(p, node, fp) != 0)
                         goto err;