Re: [PATCH 2/6] hwmon: (aspeed-pwm-tacho) Use devm_thermal_of_cooling_device_register

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On Thu, Apr 18, 2019 at 12:58 PM Guenter Roeck <linux@xxxxxxxxxxxx> wrote:
>
> 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@xxxxxxxxxxxx>
> Cc: Joel Stanley <joel@xxxxxxxxx>
> Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx>

Reviewed-by: Patrick Venture <venture@xxxxxxxxxx>

> ---
>  drivers/hwmon/aspeed-pwm-tacho.c | 6 ++----
>  1 file changed, 2 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/hwmon/aspeed-pwm-tacho.c b/drivers/hwmon/aspeed-pwm-tacho.c
> index c4dd6301e7c8..0daf0b32aa4a 100644
> --- 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);
>
> --
> 2.7.4
>



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