Re: [PATCH] HID: lg-g15 - Add support for Logitech G13.

[Markus Elfring]

…
> +++ b/drivers/hid/hid-lg-g15.c
…
> +static int lg_g13_kbd_led_set(struct led_classdev *led_cdev, enum led_brightness brightness)
> +{
…
> +	mutex_lock(&g15->mutex);
> +	ret = lg_g13_kbd_led_write(g15, g15_led, brightness);
> +	mutex_unlock(&g15->mutex);
> +
> +	return ret;
> +}
…

Under which circumstances would you become interested to apply a statement
like “guard(mutex)(&g15->mutex);”?
https://elixir.bootlin.com/linux/v6.16/source/include/linux/mutex.h#L225

Regards,
Markus