498 	struct gigaset_driver *drv;  in gigaset_if_init()  local
500 	drv = cs->driver;  in gigaset_if_init()
501 	if (!drv->have_tty)  in gigaset_if_init()
507 	cs->tty_dev = tty_port_register_device(&cs->port, drv->tty,  in gigaset_if_init()
521 	struct gigaset_driver *drv;  in gigaset_if_free()  local
523 	drv = cs->driver;  in gigaset_if_free()
524 	if (!drv->have_tty)  in gigaset_if_free()
530 	tty_unregister_device(drv->tty, cs->minor_index);  in gigaset_if_free()
557 void gigaset_if_initdriver(struct gigaset_driver *drv, const char *procname,  in gigaset_if_initdriver()  argument
563 	drv->have_tty = 0;  in gigaset_if_initdriver()
565 	drv->tty = tty = alloc_tty_driver(drv->minors);  in gigaset_if_initdriver()
575 	tty->minor_start =	drv->minor;  in gigaset_if_initdriver()
587 	drv->have_tty = 1;  in gigaset_if_initdriver()
593 	if (drv->tty)  in gigaset_if_initdriver()
594 		put_tty_driver(drv->tty);  in gigaset_if_initdriver()
597 void gigaset_if_freedriver(struct gigaset_driver *drv)  in gigaset_if_freedriver()  argument
599 	if (!drv->have_tty)  in gigaset_if_freedriver()
602 	drv->have_tty = 0;  in gigaset_if_freedriver()
603 	tty_unregister_driver(drv->tty);  in gigaset_if_freedriver()
604 	put_tty_driver(drv->tty);  in gigaset_if_freedriver()