[IPV4]: Use proc_create() to setup ->proc_fops first

Use proc_create() to make sure that ->proc_fops be setup before gluing
PDE to main tree.
Signed-off-by: NWang Chen <wangchen@cn.fujitsu.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/ipv4/route.c

@@ -542,12 +542,11 @@ static __init int ip_rt_proc_init(struct net *net)
 	if (!pde)
 		goto err1;
 
-	pde = create_proc_entry("rt_cache", S_IRUGO, net->proc_net_stat);
+	pde = proc_create("rt_cache", S_IRUGO,
+			  net->proc_net_stat, &rt_cpu_seq_fops);
 	if (!pde)
 		goto err2;
 
-	pde->proc_fops = &rt_cpu_seq_fops;
-
 #ifdef CONFIG_NET_CLS_ROUTE
 	pde = create_proc_read_entry("rt_acct", 0, net->proc_net,
 			ip_rt_acct_read, NULL);