linux-kernel - Re: [PATCH 21/23] gpio: xgs-iproc: Convert to platform remove callback returning void

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Message-ID: <1bec5afd-e17d-458b-9596-1d63e79646f2@broadcom.com>
Date:   Thu, 28 Sep 2023 23:22:32 +0200
From:   Florian Fainelli <florian.fainelli@...adcom.com>
To:     Uwe Kleine-König <u.kleine-koenig@...gutronix.de>,
        Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <brgl@...ev.pl>
Cc:     Andy Shevchenko <andy@...nel.org>, Ray Jui <rjui@...adcom.com>,
        Scott Branden <sbranden@...adcom.com>,
        Broadcom internal kernel review list 
        <bcm-kernel-feedback-list@...adcom.com>,
        linux-gpio@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 21/23] gpio: xgs-iproc: Convert to platform remove
 callback returning void



On 9/28/2023 9:07 AM, Uwe Kleine-König 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: Florian Fainelli <florian.fainelli@...adcom.com>
-- 
Florian

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