netdev - Re: [PATCH net-next 4/9] net: fec: Convert to platform remove callback returning void

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Message-ID: <20230314221508.lhumfl3y3qrybqj2@pengutronix.de>
Date:   Tue, 14 Mar 2023 23:15:08 +0100
From:   Uwe Kleine-König <u.kleine-koenig@...gutronix.de>
To:     Wei Fang <wei.fang@....com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>, Wolfram Sang <wsa@...nel.org>,
        Chris Packham <chris.packham@...iedtelesis.co.nz>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Damien Le Moal <damien.lemoal@...nsource.wdc.com>,
        Christophe Leroy <christophe.leroy@...roup.eu>,
        Michael Ellerman <mpe@...erman.id.au>,
        Mark Brown <broonie@...nel.org>,
        Marc Kleine-Budde <mkl@...gutronix.de>
Cc:     netdev@...r.kernel.org, Shenwei Wang <shenwei.wang@....com>,
        Clark Wang <xiaoning.wang@....com>,
        NXP Linux Team <linux-imx@....com>, kernel@...gutronix.de
Subject: Re: [PATCH net-next 4/9] net: fec: Convert to platform remove
 callback returning void

Hello,

On Mon, Mar 13, 2023 at 11:36:48AM +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 (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.
> 
> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@...gutronix.de>

FTR: This patch depends on patch 2 of this series which has issues. So
please drop this patch, too. Taking the other 7 patches should be fine
(unless some more issues are discovered of course).

Best regards
Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | https://www.pengutronix.de/ |

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