static int __init rapl_init()

in intel_rapl_common.c [1508:1542]

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

static int __init rapl_init(void)
{
	const struct x86_cpu_id *id;
	int ret;

	id = x86_match_cpu(rapl_ids);
	if (!id) {
		pr_err("driver does not support CPU family %d model %d\n",
		       boot_cpu_data.x86, boot_cpu_data.x86_model);

		return -ENODEV;
	}

	rapl_defaults = (struct rapl_defaults *)id->driver_data;

	ret = register_pm_notifier(&rapl_pm_notifier);
	if (ret)
		return ret;

	rapl_msr_platdev = platform_device_alloc("intel_rapl_msr", 0);
	if (!rapl_msr_platdev) {
		ret = -ENOMEM;
		goto end;
	}

	ret = platform_device_add(rapl_msr_platdev);
	if (ret)
		platform_device_put(rapl_msr_platdev);

end:
	if (ret)
		unregister_pm_notifier(&rapl_pm_notifier);

	return ret;
}