linux-kernel - Re: [PATCH v3 22/62] mmc: meson-mx-sdhc: Convert to platform remove callback returning void

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Date:   Sat, 29 Jul 2023 21:01:59 +0200
From:   Martin Blumenstingl <martin.blumenstingl@...glemail.com>
To:     Yangtao Li <frank.li@...o.com>
Cc:     Ulf Hansson <ulf.hansson@...aro.org>,
        Neil Armstrong <neil.armstrong@...aro.org>,
        Kevin Hilman <khilman@...libre.com>,
        Jerome Brunet <jbrunet@...libre.com>,
        Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>, linux-mmc@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-amlogic@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 22/62] mmc: meson-mx-sdhc: Convert to platform remove
 callback returning void

On Thu, Jul 27, 2023 at 9:01 AM Yangtao Li <frank.li@...o.com> 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 (mostly) ignored
> 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.
>
> Trivially convert this driver from always returning zero in the remove
> callback to the void returning variant.
>
> Cc: Uwe Kleine-König <u.kleine-koenig@...gutronix.de>
> Signed-off-by: Yangtao Li <frank.li@...o.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@...glemail.com>