[NETFILTER] nf_conntrack_l3proto_ipv4_compat.c: kmalloc + memset conversion to kzalloc

Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/ipv4/netfilter/nf_conntrack_l3proto_ipv4_compat.c

@@ -294,15 +294,14 @@ static int exp_open(struct inode *inode, struct file *file)
 	struct ct_expect_iter_state *st;
 	int ret;
 
-	st = kmalloc(sizeof(struct ct_expect_iter_state), GFP_KERNEL);
-	if (st == NULL)
+	st = kzalloc(sizeof(struct ct_expect_iter_state), GFP_KERNEL);
+	if (!st)
 		return -ENOMEM;
 	ret = seq_open(file, &exp_seq_ops);
 	if (ret)
 		goto out_free;
 	seq          = file->private_data;
 	seq->private = st;
-	memset(st, 0, sizeof(struct ct_expect_iter_state));
 	return ret;
 out_free:
 	kfree(st);