static int cpuidle_add_driver_sysfs()

in sysfs.c [607:633]

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

static int cpuidle_add_driver_sysfs(struct cpuidle_device *dev)
{
	struct cpuidle_driver_kobj *kdrv;
	struct cpuidle_device_kobj *kdev = dev->kobj_dev;
	struct cpuidle_driver *drv = cpuidle_get_cpu_driver(dev);
	int ret;

	kdrv = kzalloc(sizeof(*kdrv), GFP_KERNEL);
	if (!kdrv)
		return -ENOMEM;

	kdrv->drv = drv;
	init_completion(&kdrv->kobj_unregister);

	ret = kobject_init_and_add(&kdrv->kobj, &ktype_driver_cpuidle,
				   &kdev->kobj, "driver");
	if (ret) {
		kobject_put(&kdrv->kobj);
		kfree(kdrv);
		return ret;
	}

	kobject_uevent(&kdrv->kobj, KOBJ_ADD);
	dev->kobj_driver = kdrv;

	return ret;
}