Made the ipv4_send_routed_data() function a bit more safe to use (now checks if the

route passed in is valid).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@19050 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/add-ons/kernel/network/protocols/ipv4/ipv4.cpp

@@ -761,6 +761,9 @@ status_t
 ipv4_send_routed_data(net_protocol *_protocol, struct net_route *route,
 	net_buffer *buffer)
 {
+	if (route == NULL)
+		return B_BAD_VALUE;
+
 	ipv4_protocol *protocol = (ipv4_protocol *)_protocol;
 	net_interface *interface = route->interface;