static ssize_t store_bind(struct device *dev, struct device_attribute *attr,
			  const char *buf, size_t count)
{
	struct con_driver *con = dev_get_drvdata(dev);
	int bind = simple_strtoul(buf, NULL, 0);

	console_lock();

	if (bind)
		vt_bind(con);
	else
		vt_unbind(con);

	console_unlock();

	return count;
}
static ssize_t store_bind(struct device *dev, struct device_attribute *attr,
			  const char *buf, size_t count)
{
	struct con_driver *con = dev_get_drvdata(dev);
	int bind = simple_strtoul(buf, NULL, 0);

	console_lock();

	if (bind)
		vt_bind(con);
	else
		vt_unbind(con);

	console_unlock();

	return count;
}