[RFC PATCH 1/3] ARM: Add cpu power management notifiers

Russell King - ARM Linux linux at arm.linux.org.uk
Sat Feb 12 09:46:17 EST 2011


On Thu, Feb 10, 2011 at 01:31:25PM -0800, Colin Cross wrote:
> +int cpu_pm_enter(void)
> +{
> +	int nr_calls;
> +	int ret;
> +
> +	spin_lock(&idle_notifier_lock);
> +	ret = __idle_notify(CPU_PM_ENTER, -1, &nr_calls);
> +	if (ret) {
> +		__idle_notify(CPU_PM_ENTER_FAILED, nr_calls - 1, NULL);
> +		spin_unlock(&idle_notifier_lock);
> +		return ret;
> +	}
> +	spin_unlock(&idle_notifier_lock);
> +
> +	return 0;

Wouldn't:

	spin_lock(&idle_notifier_lock);
	ret = __idle_notify(CPU_PM_ENTER, -1, &nr_calls);
	if (ret)
		__idle_notify(CPU_PM_ENTER_FAILED, nr_calls - 1, NULL);
	spin_unlock(&idle_notifier_lock);

	return ret;

be easier reading?



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