int _opp_add()

in core.c [1705:1741]

• 27 lines of code
• 4 McCabe index (conditional complexity)

int _opp_add(struct device *dev, struct dev_pm_opp *new_opp,
	     struct opp_table *opp_table, bool rate_not_available)
{
	struct list_head *head;
	int ret;

	mutex_lock(&opp_table->lock);
	head = &opp_table->opp_list;

	ret = _opp_is_duplicate(dev, new_opp, opp_table, &head);
	if (ret) {
		mutex_unlock(&opp_table->lock);
		return ret;
	}

	list_add(&new_opp->node, head);
	mutex_unlock(&opp_table->lock);

	new_opp->opp_table = opp_table;
	kref_init(&new_opp->kref);

	opp_debug_create_one(new_opp, opp_table);

	if (!_opp_supported_by_regulators(new_opp, opp_table)) {
		new_opp->available = false;
		dev_warn(dev, "%s: OPP not supported by regulators (%lu)\n",
			 __func__, new_opp->rate);
	}

	/* required-opps not fully initialized yet */
	if (lazy_linking_pending(opp_table))
		return 0;

	_required_opps_available(new_opp, opp_table->required_opp_count);

	return 0;
}