[ARM] Convert kmalloc+memset to kzalloc

Convert all uses of kmalloc followed by memset to use kzalloc instead.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/kernel/apm.c b/arch/arm/kernel/apm.c
index 766b6c0..2bed290 100644
--- a/arch/arm/kernel/apm.c
+++ b/arch/arm/kernel/apm.c
@@ -357,10 +357,8 @@
 {
 	struct apm_user *as;
 
-	as = (struct apm_user *)kmalloc(sizeof(*as), GFP_KERNEL);
+	as = (struct apm_user *)kzalloc(sizeof(*as), GFP_KERNEL);
 	if (as) {
-		memset(as, 0, sizeof(*as));
-
 		/*
 		 * XXX - this is a tiny bit broken, when we consider BSD
 		 * process accounting. If the device is opened by root, we