TTY_LDISC_OPEN 465 drivers/tty/tty_ldisc.c WARN_ON(test_and_set_bit(TTY_LDISC_OPEN, &tty->flags)); TTY_LDISC_OPEN 471 drivers/tty/tty_ldisc.c clear_bit(TTY_LDISC_OPEN, &tty->flags); TTY_LDISC_OPEN 491 drivers/tty/tty_ldisc.c WARN_ON(!test_bit(TTY_LDISC_OPEN, &tty->flags)); TTY_LDISC_OPEN 492 drivers/tty/tty_ldisc.c clear_bit(TTY_LDISC_OPEN, &tty->flags);