Merge master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6

[linux-2.6] / net / ipv6 / ipv6_sockglue.c

diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
index 532425db11fea7729952ac239dfebbf3d9bf3b08..1334fc174bcf72de093eaeff65d2ec64a7239229 100644 (file)
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -539,12 +539,15 @@ done:
        case IPV6_MULTICAST_IF:
                if (sk->sk_type == SOCK_STREAM)
                        goto e_inval;
-               if (sk->sk_bound_dev_if && sk->sk_bound_dev_if != val)
-                       goto e_inval;
 
-               if (__dev_get_by_index(&init_net, val) == NULL) {
-                       retv = -ENODEV;
-                       break;
+               if (val) {
+                       if (sk->sk_bound_dev_if && sk->sk_bound_dev_if != val)
+                               goto e_inval;
+
+                       if (__dev_get_by_index(&init_net, val) == NULL) {
+                               retv = -ENODEV;
+                               break;
+                       }
                }
                np->mcast_oif = val;
                retv = 0;