On Mon, Dec 4, 2023 at 8:07 PM George Stark [off-list ref] 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