- LIST_REMOVE(Meta, dbus_queue, u->meta.manager->dbus_unit_queue, &u->meta);
- u->meta.in_dbus_queue = false;
+ if (u->meta.in_dbus_queue) {
+ LIST_REMOVE(Meta, dbus_queue, u->meta.manager->dbus_unit_queue, &u->meta);
+ u->meta.in_dbus_queue = false;
+ }