Messages in this thread Patch in this message | | | From | Durgadoss R <> | Subject | [PATCHv5 01/10] Thermal: Do kfree in _unregister functions | Date | Fri, 17 Jan 2014 05:26:18 +0530 |
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Currently the thermal_release function does kfree for all devices when they call device_unregister. This makes code scattering i.e whenever we add new devices (to thermal class) we need to add its corresponding kfree in thermal_release function. And the if-else is also growing lengthy.
Instead, do all kfree() of devices in their own _unregister functions. This makes the code look clean and easy to maintain.
Signed-off-by: Durgadoss R <durgadoss.r@intel.com> --- drivers/thermal/thermal_core.c | 17 +++++------------ 1 file changed, 5 insertions(+), 12 deletions(-)
diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c index 338a88b..165afc6 100644 --- a/drivers/thermal/thermal_core.c +++ b/drivers/thermal/thermal_core.c @@ -1042,18 +1042,7 @@ EXPORT_SYMBOL_GPL(thermal_zone_unbind_cooling_device); static void thermal_release(struct device *dev) { - struct thermal_zone_device *tz; - struct thermal_cooling_device *cdev; - - if (!strncmp(dev_name(dev), "thermal_zone", - sizeof("thermal_zone") - 1)) { - tz = to_thermal_zone(dev); - kfree(tz); - } else if(!strncmp(dev_name(dev), "cooling_device", - sizeof("cooling_device") - 1)){ - cdev = to_cooling_device(dev); - kfree(cdev); - } + /* No-op since kfree(dev) is done in _unregister functions */ } static struct class thermal_class = { @@ -1146,6 +1135,7 @@ __thermal_cooling_device_register(struct device_node *np, unregister: release_idr(&thermal_cdev_idr, &thermal_idr_lock, cdev->id); device_unregister(&cdev->device); + kfree(cdev); return ERR_PTR(result); } @@ -1250,6 +1240,7 @@ void thermal_cooling_device_unregister(struct thermal_cooling_device *cdev) release_idr(&thermal_cdev_idr, &thermal_idr_lock, cdev->id); device_unregister(&cdev->device); + kfree(cdev); return; } EXPORT_SYMBOL_GPL(thermal_cooling_device_unregister); @@ -1563,6 +1554,7 @@ struct thermal_zone_device *thermal_zone_device_register(const char *type, unregister: release_idr(&thermal_tz_idr, &thermal_idr_lock, tz->id); device_unregister(&tz->device); + kfree(tz); return ERR_PTR(result); } EXPORT_SYMBOL_GPL(thermal_zone_device_register); @@ -1630,6 +1622,7 @@ void thermal_zone_device_unregister(struct thermal_zone_device *tz) idr_destroy(&tz->idr); mutex_destroy(&tz->lock); device_unregister(&tz->device); + kfree(tz); return; } EXPORT_SYMBOL_GPL(thermal_zone_device_unregister); -- 1.7.9.5
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