[NETNS]: Add netns parameter to inetdev_by_index.

Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
index ecd91c6..8b47e11 100644
--- a/net/ipv4/fib_semantics.c
+++ b/net/ipv4/fib_semantics.c
@@ -583,7 +583,7 @@
 		if (nh->nh_flags&(RTNH_F_PERVASIVE|RTNH_F_ONLINK))
 			return -EINVAL;
 
-		in_dev = inetdev_by_index(nh->nh_oif);
+		in_dev = inetdev_by_index(&init_net, nh->nh_oif);
 		if (in_dev == NULL)
 			return -ENODEV;
 		if (!(in_dev->dev->flags&IFF_UP)) {