int siox_master_register()

in siox-core.c [710:738]

• 22 lines of code
• 5 McCabe index (conditional complexity)

int siox_master_register(struct siox_master *smaster)
{
	int ret;

	if (!siox_is_registered)
		return -EPROBE_DEFER;

	if (!smaster->pushpull)
		return -EINVAL;

	dev_set_name(&smaster->dev, "siox-%d", smaster->busno);

	mutex_init(&smaster->lock);
	INIT_LIST_HEAD(&smaster->devices);

	smaster->last_poll = jiffies;
	smaster->poll_thread = kthread_run(siox_poll_thread, smaster,
					   "siox-%d", smaster->busno);
	if (IS_ERR(smaster->poll_thread)) {
		smaster->active = 0;
		return PTR_ERR(smaster->poll_thread);
	}

	ret = device_add(&smaster->dev);
	if (ret)
		kthread_stop(smaster->poll_thread);

	return ret;
}