static void con_cleanup(struct tty_struct *tty)
{
	struct vc_data *vc = tty->driver_data;

	tty_port_put(&vc->port);
}
static void con_cleanup(struct tty_struct *tty)
{
	struct vc_data *vc = tty->driver_data;

	tty_port_put(&vc->port);
}