linux-kernel - Re: [PATCH 20/40] soc/qcom: ocmem: Convert to platform remove callback returning void

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Message-ID: <dc4068ef-ab53-4349-87e2-45c32ef0d569@linaro.org>
Date:   Mon, 25 Sep 2023 11:58:12 +0200
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     Uwe Kleine-König <u.kleine-koenig@...gutronix.de>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>
Cc:     linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        kernel@...gutronix.de
Subject: Re: [PATCH 20/40] soc/qcom: ocmem: Convert to platform remove
 callback returning void

On 25.09.2023 11:55, 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: Konrad Dybcio <konrad.dybcio@...aro.org>

Konrad