hwmon: (aspeed-pwm-tacho) Use devm_thermal_of_cooling_device_register

Use devm_thermal_of_cooling_device_register() to register the cooling
device. As a side effect, this fixes a driver bug:
thermal_cooling_device_unregister() was not called on removal.

Fixes: f198907d2ff6d ("hwmon: (aspeed-pwm-tacho) cooling device support.")
Cc: Mykola Kostenok <c_mykolak@mellanox.com>
Cc: Joel Stanley <joel@jms.id.au>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Patrick Venture <venture@google.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>

diff --git a/drivers/hwmon/aspeed-pwm-tacho.c b/drivers/hwmon/aspeed-pwm-tacho.c
index c4dd6301e7c82e62660cc7a5bded3d30a663d0cf..0daf0b32aa4acdccdc58d152ece54dd37925ae21 100644 (file)
--- a/drivers/hwmon/aspeed-pwm-tacho.c
+++ b/drivers/hwmon/aspeed-pwm-tacho.c
@@ -830,10 +830,8 @@ static int aspeed_create_pwm_cooling(struct device *dev,
        }
        snprintf(cdev->name, MAX_CDEV_NAME_LEN, "%pOFn%d", child, pwm_port);
 
-       cdev->tcdev = thermal_of_cooling_device_register(child,
-                                                        cdev->name,
-                                                        cdev,
-                                                        &aspeed_pwm_cool_ops);
+       cdev->tcdev = devm_thermal_of_cooling_device_register(dev, child,
+                                       cdev->name, cdev, &aspeed_pwm_cool_ops);
        if (IS_ERR(cdev->tcdev))
                return PTR_ERR(cdev->tcdev);