[IPV6] NETNS: Handle ancillary data in appropriate namespace.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
index 9293b9f..3eef8e5 100644
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -416,7 +416,7 @@
 		msg.msg_controllen = optlen;
 		msg.msg_control = (void*)(opt+1);
 
-		retv = datagram_send_ctl(&msg, &fl, opt, &junk, &junk);
+		retv = datagram_send_ctl(net, &msg, &fl, opt, &junk, &junk);
 		if (retv)
 			goto done;
 update: