linux-kernel - Re: [PATCH 1/8] regulator: arizona-ldo1: Convert to platform remove callback returning void

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Message-ID: <20231205130631.GE14858@ediswmail.ad.cirrus.com>
Date:   Tue, 5 Dec 2023 13:06:31 +0000
From:   Charles Keepax <ckeepax@...nsource.cirrus.com>
To:     Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>
CC:     Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        <patches@...nsource.cirrus.com>, <linux-kernel@...r.kernel.org>,
        <kernel@...gutronix.de>
Subject: Re: [PATCH 1/8] regulator: arizona-ldo1: Convert to platform remove
 callback returning void

On Tue, Dec 05, 2023 at 01:26:16PM +0100, 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>
> ---

Acked-by: Charles Keepax <ckeepax@...nsource.cirrus.com>

Thanks,
Charles