old_ldisc         561 drivers/tty/tty_ldisc.c 	struct tty_ldisc *old_ldisc, *new_ldisc;
old_ldisc         587 drivers/tty/tty_ldisc.c 	old_ldisc = tty->ldisc;
old_ldisc         590 drivers/tty/tty_ldisc.c 	tty_ldisc_close(tty, old_ldisc);
old_ldisc         600 drivers/tty/tty_ldisc.c 		tty_ldisc_restore(tty, old_ldisc);
old_ldisc         603 drivers/tty/tty_ldisc.c 	if (tty->ldisc->ops->num != old_ldisc->ops->num && tty->ops->set_ldisc) {
old_ldisc         614 drivers/tty/tty_ldisc.c 	new_ldisc = old_ldisc;