static int get_energy_counter()

in intel_rapl_common.c [167:188]

• 15 lines of code
• 2 McCabe index (conditional complexity)

static int get_energy_counter(struct powercap_zone *power_zone,
			      u64 *energy_raw)
{
	struct rapl_domain *rd;
	u64 energy_now;

	/* prevent CPU hotplug, make sure the RAPL domain does not go
	 * away while reading the counter.
	 */
	cpus_read_lock();
	rd = power_zone_to_rapl_domain(power_zone);

	if (!rapl_read_data_raw(rd, ENERGY_COUNTER, true, &energy_now)) {
		*energy_raw = energy_now;
		cpus_read_unlock();

		return 0;
	}
	cpus_read_unlock();

	return -EIO;
}