fixup! knotd: finaliza D-Bus events

src/knot/common/systemd.c

@@ -99,14 +99,14 @@ int systemd_dbus_open(void)
 
 	int ret = sd_bus_open_system(&_dbus);
 	if (ret < 0) {
-		return -ret;
+		return ret;
 	}
 
 	/* Take a well-known service name so that clients can find us. */
 	ret = sd_bus_request_name(_dbus, KNOT_DBUS_NAME, 0);
 	if (ret < 0) {
 		systemd_dbus_close();
-		return -ret;
+		return ret;
 	}
 
 	return KNOT_EOK;

src/utils/knotd/main.c

@@ -508,7 +508,7 @@ int main(int argc, char **argv)
 	if (conf()->cache.srv_dbus_event != DBUS_EVENT_NONE) {
 		ret = systemd_dbus_open();
 		if (ret != KNOT_EOK) {
-			log_warning("failed to open system dbus (%s)", knot_strerror(ret));
+			log_error("failed to open system dbus (%s)", knot_strerror(ret));
 		}
 	}