84 void tty_unregister_ldisc(struct tty_ldisc_ops *ldisc)  in tty_unregister_ldisc()  argument
89 	tty_ldiscs[ldisc->num] = NULL;  in tty_unregister_ldisc()
245 	ld = tty->ldisc;  in tty_ldisc_ref_wait()
265 		ld = tty->ldisc;  in tty_ldisc_ref()
476 	tty->ldisc = disc;  in tty_ldisc_failto()
534 	if (!tty->ldisc) {  in tty_set_ldisc()
540 	if (tty->ldisc->ops->num == disc)  in tty_set_ldisc()
549 	old_ldisc = tty->ldisc;  in tty_set_ldisc()
555 	tty->ldisc = new_ldisc;  in tty_set_ldisc()
565 	if (tty->ldisc->ops->num != old_ldisc->ops->num && tty->ops->set_ldisc) {  in tty_set_ldisc()
603 	if (!tty->ldisc)  in tty_ldisc_kill()
608 	tty_ldisc_close(tty, tty->ldisc);  in tty_ldisc_kill()
609 	tty_ldisc_put(tty->ldisc);  in tty_ldisc_kill()
611 	tty->ldisc = NULL;  in tty_ldisc_kill()
654 	if (tty->ldisc) {  in tty_ldisc_reinit()
655 		tty_ldisc_close(tty, tty->ldisc);  in tty_ldisc_reinit()
656 		tty_ldisc_put(tty->ldisc);  in tty_ldisc_reinit()
660 	tty->ldisc = ld;  in tty_ldisc_reinit()
662 	retval = tty_ldisc_open(tty, tty->ldisc);  in tty_ldisc_reinit()
664 		tty_ldisc_put(tty->ldisc);  in tty_ldisc_reinit()
665 		tty->ldisc = NULL;  in tty_ldisc_reinit()
689 	tty_ldisc_debug(tty, "%p: hangup\n", tty->ldisc);  in tty_ldisc_hangup()
718 	if (tty->ldisc) {  in tty_ldisc_hangup()
740 	int retval = tty_ldisc_open(tty, tty->ldisc);  in tty_ldisc_setup()
750 		retval = tty_ldisc_open(o_tty, o_tty->ldisc);  in tty_ldisc_setup()
752 			tty_ldisc_close(tty, tty->ldisc);  in tty_ldisc_setup()
802 	tty->ldisc = ld;  in tty_ldisc_init()
816 	if (tty->ldisc)  in tty_ldisc_deinit()
817 		tty_ldisc_put(tty->ldisc);  in tty_ldisc_deinit()
818 	tty->ldisc = NULL;  in tty_ldisc_deinit()