if (r < 0)
return r;
- return sd_bus_call(bus, msg, 0, NULL, NULL);
+ r = sd_bus_call(bus, msg, 0, NULL, NULL);
+ if (r < 0)
+ return r;
+
+ return sd_bus_reply_method_return(m, NULL);
}
static int driver_unsupported(sd_bus *bus, sd_bus_message *m, void *userdata, sd_bus_error *error) {