int dev_pm_opp_init_cpufreq_table()

in cpu.c [43:86]

• 33 lines of code
• 8 McCabe index (conditional complexity)

int dev_pm_opp_init_cpufreq_table(struct device *dev,
				  struct cpufreq_frequency_table **table)
{
	struct dev_pm_opp *opp;
	struct cpufreq_frequency_table *freq_table = NULL;
	int i, max_opps, ret = 0;
	unsigned long rate;

	max_opps = dev_pm_opp_get_opp_count(dev);
	if (max_opps <= 0)
		return max_opps ? max_opps : -ENODATA;

	freq_table = kcalloc((max_opps + 1), sizeof(*freq_table), GFP_KERNEL);
	if (!freq_table)
		return -ENOMEM;

	for (i = 0, rate = 0; i < max_opps; i++, rate++) {
		/* find next rate */
		opp = dev_pm_opp_find_freq_ceil(dev, &rate);
		if (IS_ERR(opp)) {
			ret = PTR_ERR(opp);
			goto out;
		}
		freq_table[i].driver_data = i;
		freq_table[i].frequency = rate / 1000;

		/* Is Boost/turbo opp ? */
		if (dev_pm_opp_is_turbo(opp))
			freq_table[i].flags = CPUFREQ_BOOST_FREQ;

		dev_pm_opp_put(opp);
	}

	freq_table[i].driver_data = i;
	freq_table[i].frequency = CPUFREQ_TABLE_END;

	*table = &freq_table[0];

out:
	if (ret)
		kfree(freq_table);

	return ret;
}