diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c
index 95db732..2f302d3 100644
--- a/net/ipv4/ipip.c
+++ b/net/ipv4/ipip.c
@@ -830,15 +830,14 @@
 
 	printk(banner);
 
-	if (xfrm4_tunnel_register(&ipip_handler, AF_INET)) {
-		printk(KERN_INFO "ipip init: can't register tunnel\n");
-		return -EAGAIN;
-	}
-
 	err = register_pernet_device(&ipip_net_ops);
-	if (err)
-		xfrm4_tunnel_deregister(&ipip_handler, AF_INET);
-
+	if (err < 0)
+		return err;
+	err = xfrm4_tunnel_register(&ipip_handler, AF_INET);
+	if (err < 0) {
+		unregister_pernet_device(&ipip_net_ops);
+		printk(KERN_INFO "ipip init: can't register tunnel\n");
+	}
 	return err;
 }