399 static struct tty_driver *tty_drv;  variable
2254 	tty_unregister_device(tty_drv, serial->minor);  in hso_serial_common_free()
2283 	serial->parent->dev = tty_port_register_device(&serial->port, tty_drv,  in hso_serial_common_create()
2761 		tty_unregister_device(tty_drv, serial->minor);  in hso_create_mux_serial_device()
3264 	tty_drv = alloc_tty_driver(HSO_SERIAL_TTY_MINORS);  in hso_init()
3265 	if (!tty_drv)  in hso_init()
3269 	tty_drv->driver_name = driver_name;  in hso_init()
3270 	tty_drv->name = tty_filename;  in hso_init()
3274 		tty_drv->major = tty_major;  in hso_init()
3276 	tty_drv->minor_start = 0;  in hso_init()
3277 	tty_drv->type = TTY_DRIVER_TYPE_SERIAL;  in hso_init()
3278 	tty_drv->subtype = SERIAL_TYPE_NORMAL;  in hso_init()
3279 	tty_drv->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;  in hso_init()
3280 	tty_drv->init_termios = tty_std_termios;  in hso_init()
3281 	hso_init_termios(&tty_drv->init_termios);  in hso_init()
3282 	tty_set_operations(tty_drv, &hso_serial_ops);  in hso_init()
3285 	result = tty_register_driver(tty_drv);  in hso_init()
3303 	tty_unregister_driver(tty_drv);  in hso_init()
3305 	put_tty_driver(tty_drv);  in hso_init()
3313 	tty_unregister_driver(tty_drv);  in hso_exit()
3314 	put_tty_driver(tty_drv);  in hso_exit()