From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id AA3FFC64EC4 for ; Fri, 3 Mar 2023 17:29:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230389AbjCCR3c convert rfc822-to-8bit (ORCPT ); Fri, 3 Mar 2023 12:29:32 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47490 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230353AbjCCR3c (ORCPT ); Fri, 3 Mar 2023 12:29:32 -0500 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 1853317154 for ; Fri, 3 Mar 2023 09:29:31 -0800 (PST) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id F1E5F106F; Fri, 3 Mar 2023 09:30:13 -0800 (PST) Received: from donnerap.cambridge.arm.com (usa-sjc-imap-foss1.foss.arm.com [10.121.207.14]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 8FA503F67D; Fri, 3 Mar 2023 09:29:29 -0800 (PST) Date: Fri, 3 Mar 2023 17:29:25 +0000 From: Andre Przywara To: Uwe =?UTF-8?B?S2xlaW5lLUvDtm5pZw==?= Cc: Mark Brown , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , linux-spi@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, kernel@pengutronix.de Subject: Re: [PATCH 74/87] spi: sun4i: Convert to platform remove callback returning void Message-ID: <20230303172925.6a150e9a@donnerap.cambridge.arm.com> In-Reply-To: <20230303172041.2103336-75-u.kleine-koenig@pengutronix.de> References: <20230303172041.2103336-1-u.kleine-koenig@pengutronix.de> <20230303172041.2103336-75-u.kleine-koenig@pengutronix.de> Organization: ARM X-Mailer: Claws Mail 3.18.0 (GTK+ 2.24.32; aarch64-unknown-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8BIT Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org On Fri, 3 Mar 2023 18:20:28 +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 Reviewed-by: Andre Przywara Cheers, Andre > --- > drivers/spi/spi-sun4i.c | 6 ++---- > 1 file changed, 2 insertions(+), 4 deletions(-) > > diff --git a/drivers/spi/spi-sun4i.c b/drivers/spi/spi-sun4i.c > index 6000d0761206..994d0fb50e68 100644 > --- a/drivers/spi/spi-sun4i.c > +++ b/drivers/spi/spi-sun4i.c > @@ -516,11 +516,9 @@ static int sun4i_spi_probe(struct platform_device *pdev) > return ret; > } > > -static int sun4i_spi_remove(struct platform_device *pdev) > +static void sun4i_spi_remove(struct platform_device *pdev) > { > pm_runtime_force_suspend(&pdev->dev); > - > - return 0; > } > > static const struct of_device_id sun4i_spi_match[] = { > @@ -536,7 +534,7 @@ static const struct dev_pm_ops sun4i_spi_pm_ops = { > > static struct platform_driver sun4i_spi_driver = { > .probe = sun4i_spi_probe, > - .remove = sun4i_spi_remove, > + .remove_new = sun4i_spi_remove, > .driver = { > .name = "sun4i-spi", > .of_match_table = sun4i_spi_match,