[X25] x25_forward_call(): fix NULL dereferences

This patch fixes two NULL dereferences spotted by the Coverity checker.
Signed-off-by: NAdrian Bunk <bunk@stusta.de>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/x25/x25_forward.c

@@ -26,7 +26,8 @@ int x25_forward_call(struct x25_address *dest_addr, struct x25_neigh *from,
 	short same_lci = 0;
 	int rc = 0;
 
-	if ((rt = x25_get_route(dest_addr)) != NULL) {
+	if ((rt = x25_get_route(dest_addr)) == NULL)
+		goto out_no_route;
 
 	if ((neigh_new = x25_get_neigh(rt->dev)) == NULL) {
 		/* This shouldnt happen, if it occurs somehow
@@ -76,7 +77,6 @@ int x25_forward_call(struct x25_address *dest_addr, struct x25_neigh *from,
 	}
 	x25_transmit_link(skbn, neigh_new);
 	rc = 1;
-	}
 
 
 out_put_nb:
@@ -84,6 +84,8 @@ int x25_forward_call(struct x25_address *dest_addr, struct x25_neigh *from,
 
 out_put_route:
 	x25_route_put(rt);
+
+out_no_route:
 	return rc;
 }