Re: [PATCH v1 1/1] leds: is31fl319x: Wrap mutex_destroy() for devm_add_action_or_rest()

From: Andy Shevchenko
Date: Wed Dec 28 2022 - 05:10:52 EST


On Wed, Dec 28, 2022 at 11:32:38AM +0200, Andy Shevchenko wrote:
> Clang complains that devm_add_action() takes a parameter with a wrong type:
>
> warning: cast from 'void (*)(struct mutex *)' to 'void (*)(void *)' converts to incompatible function type [-Wcast-function-type-strict]
> err = devm_add_action(dev, (void (*)(void *))mutex_destroy, &is31->lock);
> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> 1 warning generated.
>
> It appears that the commit e1af5c815586 ("leds: is31fl319x: Fix devm vs.
> non-devm ordering") missed two things:
> - while mention devm_add_action_or_reset() the actual change got
> devm_add_action() call by unknown reason
> - strictly speaking the parameter is not compatible by type
>
> Fix both issues by switching to devm_add_action_or_reset() and adding a
> wrapper for mutex_destroy() call.

This should be read as v2 actually (but code wise the v1 and v2 has no difference).

--
With Best Regards,
Andy Shevchenko