ipv4: Make output route lookup return rtable directly.

Instead of on the stack.

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/atm/clip.c b/net/atm/clip.c
index d257da5..810a129 100644
--- a/net/atm/clip.c
+++ b/net/atm/clip.c
@@ -520,9 +520,9 @@
 		unlink_clip_vcc(clip_vcc);
 		return 0;
 	}
-	error = ip_route_output_key(&init_net, &rt, &fl);
-	if (error)
-		return error;
+	rt = ip_route_output_key(&init_net, &fl);
+	if (IS_ERR(rt))
+		return PTR_ERR(rt);
 	neigh = __neigh_lookup(&clip_tbl, &ip, rt->dst.dev, 1);
 	ip_rt_put(rt);
 	if (!neigh)