267 	ld = tty->ldisc;  in tty_ldisc_ref_wait()
288 		ld = tty->ldisc;  in tty_ldisc_ref()
509 	tty->ldisc = disc;  in tty_ldisc_failto()
566 	if (!tty->ldisc) {  in tty_set_ldisc()
572 	if (tty->ldisc->ops->num == disc)  in tty_set_ldisc()
581 	old_ldisc = tty->ldisc;  in tty_set_ldisc()
587 	tty->ldisc = new_ldisc;  in tty_set_ldisc()
597 	if (tty->ldisc->ops->num != old_ldisc->ops->num && tty->ops->set_ldisc) {  in tty_set_ldisc()
631 	if (!tty->ldisc)  in tty_ldisc_kill()
636 	tty_ldisc_close(tty, tty->ldisc);  in tty_ldisc_kill()
637 	tty_ldisc_put(tty->ldisc);  in tty_ldisc_kill()
639 	tty->ldisc = NULL;  in tty_ldisc_kill()
685 	if (tty->ldisc) {  in tty_ldisc_reinit()
686 		tty_ldisc_close(tty, tty->ldisc);  in tty_ldisc_reinit()
687 		tty_ldisc_put(tty->ldisc);  in tty_ldisc_reinit()
691 	tty->ldisc = ld;  in tty_ldisc_reinit()
693 	retval = tty_ldisc_open(tty, tty->ldisc);  in tty_ldisc_reinit()
695 		tty_ldisc_put(tty->ldisc);  in tty_ldisc_reinit()
696 		tty->ldisc = NULL;  in tty_ldisc_reinit()
720 	tty_ldisc_debug(tty, "%p: hangup\n", tty->ldisc);  in tty_ldisc_hangup()
749 	if (tty->ldisc) {  in tty_ldisc_hangup()
772 	int retval = tty_ldisc_open(tty, tty->ldisc);  in tty_ldisc_setup()
781 		retval = tty_ldisc_open(o_tty, o_tty->ldisc);  in tty_ldisc_setup()
783 			tty_ldisc_close(tty, tty->ldisc);  in tty_ldisc_setup()
833 	tty->ldisc = ld;  in tty_ldisc_init()
847 	if (tty->ldisc)  in tty_ldisc_deinit()
848 		tty_ldisc_put(tty->ldisc);  in tty_ldisc_deinit()
849 	tty->ldisc = NULL;  in tty_ldisc_deinit()