1 files changed, 20 insertions, 31 deletions

diff --git a/net/ipv6/ip6_vti.c b/net/ipv6/ip6_vti.c
index 9aaa6bb229e4..b61b0b1bb7ce 100644
--- a/net/ipv6/ip6_vti.c
+++ b/net/ipv6/ip6_vti.c
@@ -1089,36 +1089,26 @@ static struct xfrm6_protocol vti_ipcomp6_protocol __read_mostly = {
  **/
 static int __init vti6_tunnel_init(void)
 {
-        int  err;
+        const char *msg;
+        int err;
 
+        msg = "tunnel device";
         err = register_pernet_device(&vti6_net_ops);
         if (err < 0)
-                goto out_pernet;
+                goto pernet_dev_failed;
 
+        msg = "tunnel protocols";
         err = xfrm6_protocol_register(&vti_esp6_protocol, IPPROTO_ESP);
-        if (err < 0) {
-                pr_err("%s: can't register vti6 protocol\n", __func__);
-
-                goto out;
-        }
-
+        if (err < 0)
+                goto xfrm_proto_esp_failed;
         err = xfrm6_protocol_register(&vti_ah6_protocol, IPPROTO_AH);
-        if (err < 0) {
-                xfrm6_protocol_deregister(&vti_esp6_protocol, IPPROTO_ESP);
-                pr_err("%s: can't register vti6 protocol\n", __func__);
-
-                goto out;
-        }
-
+        if (err < 0)
+                goto xfrm_proto_ah_failed;
         err = xfrm6_protocol_register(&vti_ipcomp6_protocol, IPPROTO_COMP);
-        if (err < 0) {
-                xfrm6_protocol_deregister(&vti_ah6_protocol, IPPROTO_AH);
-                xfrm6_protocol_deregister(&vti_esp6_protocol, IPPROTO_ESP);
-                pr_err("%s: can't register vti6 protocol\n", __func__);
-
-                goto out;
-        }
+        if (err < 0)
+                goto xfrm_proto_comp_failed;
 
+        msg = "netlink interface";
         err = rtnl_link_register(&vti6_link_ops);
         if (err < 0)
                 goto rtnl_link_failed;
@@ -1127,11 +1117,14 @@ static int __init vti6_tunnel_init(void)
 
 rtnl_link_failed:
         xfrm6_protocol_deregister(&vti_ipcomp6_protocol, IPPROTO_COMP);
+xfrm_proto_comp_failed:
         xfrm6_protocol_deregister(&vti_ah6_protocol, IPPROTO_AH);
+xfrm_proto_ah_failed:
         xfrm6_protocol_deregister(&vti_esp6_protocol, IPPROTO_ESP);
-out:
+xfrm_proto_esp_failed:
         unregister_pernet_device(&vti6_net_ops);
-out_pernet:
+pernet_dev_failed:
+        pr_err("vti6 init: failed to register %s\n", msg);
         return err;
 }
 
@@ -1141,13 +1134,9 @@ out_pernet:
 static void __exit vti6_tunnel_cleanup(void)
 {
         rtnl_link_unregister(&vti6_link_ops);
-        if (xfrm6_protocol_deregister(&vti_ipcomp6_protocol, IPPROTO_COMP))
-                pr_info("%s: can't deregister protocol\n", __func__);
-        if (xfrm6_protocol_deregister(&vti_ah6_protocol, IPPROTO_AH))
-                pr_info("%s: can't deregister protocol\n", __func__);
-        if (xfrm6_protocol_deregister(&vti_esp6_protocol, IPPROTO_ESP))
-                pr_info("%s: can't deregister protocol\n", __func__);
-
+        xfrm6_protocol_deregister(&vti_ipcomp6_protocol, IPPROTO_COMP);
+        xfrm6_protocol_deregister(&vti_ah6_protocol, IPPROTO_AH);
+        xfrm6_protocol_deregister(&vti_esp6_protocol, IPPROTO_ESP);
         unregister_pernet_device(&vti6_net_ops);
 }