Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

[karo-tx-linux.git] / net / ipv4 / tunnel4.c

diff --git a/net/ipv4/tunnel4.c b/net/ipv4/tunnel4.c
index 45cd4253583a0c0b0797bfb1173b0e93a02805d7..ec35eaa5c029d3eeaa5a34435658a3d829692234 100644 (file)
--- a/net/ipv4/tunnel4.c
+++ b/net/ipv4/tunnel4.c
@@ -208,24 +208,25 @@ static const struct net_protocol tunnelmpls4_protocol = {
 static int __init tunnel4_init(void)
 {
        if (inet_add_protocol(&tunnel4_protocol, IPPROTO_IPIP))
-               goto err_ipip;
+               goto err;
 #if IS_ENABLED(CONFIG_IPV6)
-       if (inet_add_protocol(&tunnel64_protocol, IPPROTO_IPV6))
-               goto err_ipv6;
+       if (inet_add_protocol(&tunnel64_protocol, IPPROTO_IPV6)) {
+               inet_del_protocol(&tunnel4_protocol, IPPROTO_IPIP);
+               goto err;
+       }
 #endif
 #if IS_ENABLED(CONFIG_MPLS)
-       if (inet_add_protocol(&tunnelmpls4_protocol, IPPROTO_MPLS))
-               goto err_mpls;
+       if (inet_add_protocol(&tunnelmpls4_protocol, IPPROTO_MPLS)) {
+               inet_del_protocol(&tunnel4_protocol, IPPROTO_IPIP);
+#if IS_ENABLED(CONFIG_IPV6)
+               inet_del_protocol(&tunnel64_protocol, IPPROTO_IPV6);
+#endif
+               goto err;
+       }
 #endif
        return 0;
 
-#if IS_ENABLED(CONFIG_IPV6)
-err_mpls:
-       inet_del_protocol(&tunnel4_protocol, IPPROTO_IPV6);
-#endif
-err_ipv6:
-       inet_del_protocol(&tunnel4_protocol, IPPROTO_IPIP);
-err_ipip:
+err:
        pr_err("%s: can't add protocol\n", __func__);
        return -EAGAIN;
 }