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thermal: core: Introduce thermal_cooling_device_present()

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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: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Zhang Rui <rui.zhang@intel.com>
Reviewed-by: Zhang Rui <rui.zhang@intel.com>
This commit is contained in:
Rafael J. Wysocki 2023-03-17 17:54:34 +01:00
parent c0e0421a60
commit c43198af05
1 changed files with 15 additions and 6 deletions
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21
drivers/thermal/thermal_core.c
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@ -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 */