kernel-pfroute: Don't cache route entries if installation fails

src/libhydra/plugins/kernel_pfroute/kernel_pfroute_net.c

@@ -1420,9 +1420,12 @@ METHOD(kernel_net_t, add_route, status_t,
 		this->routes_lock->unlock(this->routes_lock);
 		return ALREADY_DONE;
 	}
-	found = route_entry_clone(&route);
-	this->routes->put(this->routes, found, found);
 	status = manage_route(this, RTM_ADD, dst_net, prefixlen, gateway, if_name);
+	if (status == SUCCESS)
+	{
+		found = route_entry_clone(&route);
+		this->routes->put(this->routes, found, found);
+	}
 	this->routes_lock->unlock(this->routes_lock);
 	return status;
 }