[PATCH v2 04/10] leds: aw200xx: use devm API to cleanup module's resources

Andy Shevchenko andy.shevchenko at gmail.com
Tue Dec 5 05:16:24 AEDT 2023


On Mon, Dec 4, 2023 at 8:07 PM George Stark <gnstark at salutedevices.com> wrote:
>
> In this driver LEDs are registered using devm_led_classdev_register()
> so they are automatically unregistered after module's remove() is done.
> led_classdev_unregister() calls module's led_set_brightness() to turn off
> the LEDs and that callback uses resources which were destroyed already
> in module's remove() so use devm API instead of remove().

...

> +static void aw200xx_chip_reset_action(void *data)
> +{
> +       const struct aw200xx *chip = (struct aw200xx *)data;
> +
> +       aw200xx_chip_reset(chip);
> +}
> +
> +static void aw200xx_disable_action(void *data)
> +{
> +       const struct aw200xx *chip = (struct aw200xx *)data;
> +
> +       aw200xx_disable(chip);
> +}

They can be made oneliners.

...

> +       if (devm_mutex_init(&client->dev, &chip->mutex))
> +               return -ENOMEM;

Do not shadow the real error code.

-- 
With Best Regards,
Andy Shevchenko


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