1637 		struct tty_struct *o_tty = tty->link;  in tty_release_checks()  local
1639 		if (o_tty != tty->driver->other->ttys[idx]) {  in tty_release_checks()
1644 		if (o_tty->link != tty) {  in tty_release_checks()
1645 			tty_debug(tty, "bad link = %p\n", o_tty->link);  in tty_release_checks()
1734 	struct tty_struct *o_tty = NULL;  in tty_release()  local
1751 		o_tty = tty->link;  in tty_release()
1764 	tty_lock_slave(o_tty);  in tty_release()
1792 		if (o_tty && o_tty->count <= 1) {  in tty_release()
1793 			if (waitqueue_active(&o_tty->read_wait)) {  in tty_release()
1794 				wake_up_poll(&o_tty->read_wait, EPOLLIN);  in tty_release()
1797 			if (waitqueue_active(&o_tty->write_wait)) {  in tty_release()
1798 				wake_up_poll(&o_tty->write_wait, EPOLLOUT);  in tty_release()
1816 	if (o_tty) {  in tty_release()
1817 		if (--o_tty->count < 0) {  in tty_release()
1818 			tty_warn(tty, "bad slave count (%d)\n", o_tty->count);  in tty_release()
1819 			o_tty->count = 0;  in tty_release()
1848 		if (o_tty)  in tty_release()
1849 			session_clear_tty(o_tty->session);  in tty_release()
1854 	final = !tty->count && !(o_tty && o_tty->count);  in tty_release()
1856 	tty_unlock_slave(o_tty);  in tty_release()