Re: [PATCH v2 03/10] leds: aw2013: use devm API to cleanup module's resources

[Andy Shevchenko]

On Mon, Dec 4, 2023 at 8:07 PM George Stark <gnstark@xxxxxxxxxxxxxxxxx> 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 aw2013_chip_disable_action(void *data)
> +{
> +       struct aw2013 *chip = (struct aw2013 *)data;
> +
> +       aw2013_chip_disable(chip);
> +}

As with mutex release, this also can be oneliner

static void aw2013_chip_disable_action(void *chip)
{
       aw2013_chip_disable(chip);
}

...

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

Shouldn be

       ret = devm_mutex_init(&client->dev, &chip->mutex);
       if (ret)
           return ret;

?

> +               return -ENOMEM;

-- 
With Best Regards,
Andy Shevchenko