ttynull_driver     14 drivers/tty/ttynull.c static struct tty_driver *ttynull_driver;
ttynull_driver     54 drivers/tty/ttynull.c 	return ttynull_driver;
ttynull_driver     92 drivers/tty/ttynull.c 	ttynull_driver = driver;
ttynull_driver    101 drivers/tty/ttynull.c 	tty_unregister_driver(ttynull_driver);
ttynull_driver    102 drivers/tty/ttynull.c 	put_tty_driver(ttynull_driver);