grdev_session_restore(m->grdev_session);
grdev_session_disable(m->grdev_session);
m->grdev_session = grdev_session_free(m->grdev_session);
grdev_session_restore(m->grdev_session);
grdev_session_disable(m->grdev_session);
m->grdev_session = grdev_session_free(m->grdev_session);