On Wed, Jun 15, 2022 at 5:49 PM Jean-Jacques Hiblot <jjhiblot@xxxxxxxxxxxxxxx> wrote: > > Use the devm_add_action_or_reset() helper. ... > @@ -20,8 +20,10 @@ > #include <linux/timer.h> > #include <uapi/linux/uleds.h> > #include <linux/of.h> > +#include <linux/acpi.h> > #include "leds.h" > > + > static struct class *leds_class; > > static ssize_t brightness_show(struct device *dev, Stray changes. ... > + led_put((struct led_classdev *) cdev); Casting from/to void * is redundant. -- With Best Regards, Andy Shevchenko