From patchwork Fri Mar 3 17:20:27 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= X-Patchwork-Id: 13159144 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 23EDFC64EC4 for ; Fri, 3 Mar 2023 17:21:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230115AbjCCRVh (ORCPT ); Fri, 3 Mar 2023 12:21:37 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39796 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231626AbjCCRVR (ORCPT ); Fri, 3 Mar 2023 12:21:17 -0500 Received: from metis.ext.pengutronix.de (metis.ext.pengutronix.de [IPv6:2001:67c:670:201:290:27ff:fe1d:cc33]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4291C4743D for ; Fri, 3 Mar 2023 09:21:12 -0800 (PST) Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1pY95f-00074T-Go; Fri, 03 Mar 2023 18:21:07 +0100 Received: from [2a0a:edc0:0:900:1d::77] (helo=ptz.office.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtp (Exim 4.94.2) (envelope-from ) id 1pY95e-001boK-M9; Fri, 03 Mar 2023 18:21:06 +0100 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pY95d-001tmX-RL; Fri, 03 Mar 2023 18:21:05 +0100 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Alain Volmat , Mark Brown , Maxime Coquelin , Alexandre Torgue Cc: linux-spi@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, kernel@pengutronix.de Subject: [PATCH 73/87] spi: stm32: Convert to platform remove callback returning void Date: Fri, 3 Mar 2023 18:20:27 +0100 Message-Id: <20230303172041.2103336-74-u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.39.1 In-Reply-To: <20230303172041.2103336-1-u.kleine-koenig@pengutronix.de> References: <20230303172041.2103336-1-u.kleine-koenig@pengutronix.de> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1775; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=TTzji5qZuKUEjFFALcmPwLVE5by1HIpRjVd3ggKjoqg=; b=owEBbQGS/pANAwAKAcH8FHityuwJAcsmYgBkAiwmxvr9esPSJVH5g3dbhmj4salWV2V+ja3L1 clwRFsikZSJATMEAAEKAB0WIQR+cioWkBis/z50pAvB/BR4rcrsCQUCZAIsJgAKCRDB/BR4rcrs CbU2B/9tBylijbSzh84LNRPeuDQ2AJ2zYYwjs0PXJC98NEms2VKjmdiihvSxC+Uj7awn8bN4UFK FVaXmElsMZPkZPb/H3inzmoXSKP7qvjXOy1fB9aYtTwn4I7YqN+DXRL+1Rd1AJOs1JyknRdyusk KsRILGf4DbfoReFAxj4MSdbfs+93DN1d7OcDM0aABAwFjO07Auz+PR8SeTjAPYoRf9M+kO664H3 LVD3YOYJIhcBibqM5no5j3LIGcdbGiRSDCAVqzRCeNGTwsoeHt8zmxAZSs3ir0Hw/yYXurTLIYn 3KDPTdth+C6KjUyq9Ba6ejiPLOVcKlfo9FolbUKVic2mc8SG X-Developer-Key: i=u.kleine-koenig@pengutronix.de; a=openpgp; fpr=0D2511F322BFAB1C1580266BE2DCDD9132669BD6 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: ukl@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-spi@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org 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 --- drivers/spi/spi-stm32.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/spi/spi-stm32.c b/drivers/spi/spi-stm32.c index def09cf0dc14..9ccb52296e57 100644 --- a/drivers/spi/spi-stm32.c +++ b/drivers/spi/spi-stm32.c @@ -1922,7 +1922,7 @@ static int stm32_spi_probe(struct platform_device *pdev) return ret; } -static int stm32_spi_remove(struct platform_device *pdev) +static void stm32_spi_remove(struct platform_device *pdev) { struct spi_master *master = platform_get_drvdata(pdev); struct stm32_spi *spi = spi_master_get_devdata(master); @@ -1946,8 +1946,6 @@ static int stm32_spi_remove(struct platform_device *pdev) pinctrl_pm_select_sleep_state(&pdev->dev); - - return 0; } static int __maybe_unused stm32_spi_runtime_suspend(struct device *dev) @@ -2023,7 +2021,7 @@ static const struct dev_pm_ops stm32_spi_pm_ops = { static struct platform_driver stm32_spi_driver = { .probe = stm32_spi_probe, - .remove = stm32_spi_remove, + .remove_new = stm32_spi_remove, .driver = { .name = DRIVER_NAME, .pm = &stm32_spi_pm_ops,