security/audit/audit_bsd.c

489 	lp->sl_mtx = lck_mtx_alloc_init(audit_lck_grp, LCK_ATTR_NULL);
490 	KASSERT(lp->sl_mtx != NULL,
508 	lck_mtx_lock(lp->sl_mtx);
511 		res = lck_mtx_sleep(lp->sl_mtx, LCK_SLEEP_DEFAULT,
516 	lck_mtx_unlock(lp->sl_mtx);
528 	lck_mtx_lock(lp->sl_mtx);
536 	lck_mtx_unlock(lp->sl_mtx);
547 	lck_mtx_lock(lp->sl_mtx);
551 	lck_mtx_unlock(lp->sl_mtx);
573 	if (lp->sl_mtx) {
574 		lck_mtx_free(lp->sl_mtx, audit_lck_grp);
575 		lp->sl_mtx = NULL;