Commit 5df0aa73 authored by Daniel Lezcano's avatar Daniel Lezcano Committed by Rafael J. Wysocki
Browse files

cpuidle: Introduce __cpuidle_device_init() 



Add __cpuidle_device_init() for initializing the cpuidle_device
structure.

[rjw: Changelog]
Signed-off-by: default avatarDaniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent f6bb51a5

drivers/cpuidle/cpuidle.c

+13 −7
Original line number Diff line number Diff line
@@ -276,7 +276,7 @@ static void poll_idle_init(struct cpuidle_driver *drv) {} 
 */

int cpuidle_enable_device(struct cpuidle_device *dev)

{

	int ret, i;

	int ret;

	struct cpuidle_driver *drv;



	if (!dev)
@@ -306,12 +306,6 @@ int cpuidle_enable_device(struct cpuidle_device *dev) 
	    (ret = cpuidle_curr_governor->enable(drv, dev)))

		goto fail_sysfs;



	for (i = 0; i < dev->state_count; i++) {

		dev->states_usage[i].usage = 0;

		dev->states_usage[i].time = 0;

	}

	dev->last_residency = 0;



	smp_wmb();



	dev->enabled = 1;
@@ -364,6 +358,14 @@ static void __cpuidle_unregister_device(struct cpuidle_device *dev) 
	module_put(drv->owner);

}



static int __cpuidle_device_init(struct cpuidle_device *dev)

{

	memset(dev->states_usage, 0, sizeof(dev->states_usage));

	dev->last_residency = 0;



	return 0;

}



/**

 * __cpuidle_register_device - internal register function called before register

 * and enable routines
@@ -405,6 +407,10 @@ int cpuidle_register_device(struct cpuidle_device *dev) 


	mutex_lock(&cpuidle_lock);



	ret = __cpuidle_device_init(dev);

	if (ret)

		goto out_unlock;



	ret = __cpuidle_register_device(dev);

	if (ret)

		goto out_unlock;