linux-kernel - Re: [PATCH] auxdisplay: seg-led-gpio: Convert to platform remove callback returning void

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Date: Tue, 9 Apr 2024 15:54:41 +0300
From: Andy Shevchenko <andy@...nel.org>
To: Geert Uytterhoeven <geert@...ux-m68k.org>
Cc: Uwe Kleine-König <u.kleine-koenig@...gutronix.de>,
	Chris Packham <chris.packham@...iedtelesis.co.nz>,
	linux-kernel@...r.kernel.org, kernel@...gutronix.de
Subject: Re: [PATCH] auxdisplay: seg-led-gpio: Convert to platform remove
 callback returning void

On Tue, Apr 09, 2024 at 11:29:06AM +0200, Geert Uytterhoeven wrote:
> On Tue, Apr 9, 2024 at 11:03 AM Uwe Kleine-König
> <u.kleine-koenig@...gutronix.de> wrote:
> > The .remove() callback for a platform driver returns an int which makes
> > many driver authors wrongly assume it's possible to do error handling by
> > returning an error code. However the value returned is ignored (apart
> > from emitting a warning) and this typically results in resource leaks.
> >
> > To improve here there is a quest to make the remove callback return
> > void. In the first step of this quest all drivers are converted to
> > .remove_new(), which already returns void. Eventually after all drivers
> > are converted, .remove_new() will be renamed to .remove().
> >
> > Trivially convert this driver from always returning zero in the remove
> > callback to the void returning variant.
> >
> > Signed-off-by: Uwe Kleine-König <u.kleine-koenig@...gutronix.de>
> 
> Reviewed-by: Geert Uytterhoeven <geert@...ux-m68k.org>

Pushed to my review and testing queue, thanks!

-- 
With Best Regards,
Andy Shevchenko