Commit c43198af authored by Rafael J. Wysocki's avatar Rafael J. Wysocki
Browse files

thermal: core: Introduce thermal_cooling_device_present() 



Introduce a helper function, thermal_cooling_device_present(), for
checking if the given cooling device is in the list of registered
cooling devices to avoid some code duplication in a subsequent
patch.

No expected functional impact.

Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: default avatarZhang Rui <rui.zhang@intel.com>
Reviewed-by: default avatarZhang Rui <rui.zhang@intel.com>
parent c0e0421a

drivers/thermal/thermal_core.c

+15 −6
Original line number Diff line number Diff line
@@ -1045,6 +1045,18 @@ devm_thermal_of_cooling_device_register(struct device *dev, 
}

EXPORT_SYMBOL_GPL(devm_thermal_of_cooling_device_register);



static bool thermal_cooling_device_present(struct thermal_cooling_device *cdev)

{

	struct thermal_cooling_device *pos = NULL;



	list_for_each_entry(pos, &thermal_cdev_list, node) {

		if (pos == cdev)

			return true;

	}



	return false;

}



static void __unbind(struct thermal_zone_device *tz, int mask,

		     struct thermal_cooling_device *cdev)

{
@@ -1067,20 +1079,17 @@ void thermal_cooling_device_unregister(struct thermal_cooling_device *cdev) 
	int i;

	const struct thermal_zone_params *tzp;

	struct thermal_zone_device *tz;

	struct thermal_cooling_device *pos = NULL;



	if (!cdev)

		return;



	mutex_lock(&thermal_list_lock);

	list_for_each_entry(pos, &thermal_cdev_list, node)

		if (pos == cdev)

			break;

	if (pos != cdev) {

		/* thermal cooling device not found */



	if (!thermal_cooling_device_present(cdev)) {

		mutex_unlock(&thermal_list_lock);

		return;

	}



	list_del(&cdev->node);



	/* Unbind all thermal zones associated with 'this' cdev */