Free and unload steer modules upon exit

Signed-off-by: Filip Matusiak <filip.matusiak@iopsys.eu>

src/cntlr.c

@@ -1943,6 +1943,7 @@ void run_controller(void)
 	uloop_run();
 
 out_exit:
+	cntlr_unload_steer_modules(c);
 	map_unsubscribe(ctx, c->subscriber);
 	cntlr_clean_nodelist(c);
 	ubus_unregister_event_handler(ctx, &c->evh);

src/steer_module.c

@@ -78,6 +78,7 @@ static int cntlr_unload_steer_module(struct steer_control *sc)
 
 	ret = plugin_unload(sc->handle);
 	list_del(&sc->list);
+	free(sc);
 
 	return !ret ? 0 : -1;
 }