netdev: use non-racy method for proc entries creation

Use proc_create()/proc_create_data() to make sure that ->proc_fops and ->data
be setup before gluing PDE to main tree.

Signed-off-by: Denis V. Lunev <den@openvz.org>
Cc: Jeff Garzik <jgarzik@pobox.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/net/pppol2tp.c b/drivers/net/pppol2tp.c
index 3d10ca0..244d783 100644
--- a/drivers/net/pppol2tp.c
+++ b/drivers/net/pppol2tp.c
@@ -2469,12 +2469,12 @@
 		goto out_unregister_pppol2tp_proto;
 
 #ifdef CONFIG_PROC_FS
-	pppol2tp_proc = create_proc_entry("pppol2tp", 0, init_net.proc_net);
+	pppol2tp_proc = proc_net_fops_create(&init_net, "pppol2tp", 0,
+					     &pppol2tp_proc_fops);
 	if (!pppol2tp_proc) {
 		err = -ENOMEM;
 		goto out_unregister_pppox_proto;
 	}
-	pppol2tp_proc->proc_fops = &pppol2tp_proc_fops;
 #endif /* CONFIG_PROC_FS */
 	printk(KERN_INFO "PPPoL2TP kernel driver, %s\n",
 	       PPPOL2TP_DRV_VERSION);