From patchwork Fri Mar 3 18:54:34 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: 658673 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 3D2C6C7EE2F for ; Fri, 3 Mar 2023 18:55:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231945AbjCCSzW (ORCPT ); Fri, 3 Mar 2023 13:55:22 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37050 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231728AbjCCSzV (ORCPT ); Fri, 3 Mar 2023 13:55:21 -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 EE0F4199CB for ; Fri, 3 Mar 2023 10:55:08 -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 1pYAYZ-0006Nz-HC; Fri, 03 Mar 2023 19:55:03 +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 1pYAYY-001cUr-R0; Fri, 03 Mar 2023 19:55:02 +0100 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pYAYX-001ukj-0W; Fri, 03 Mar 2023 19:55:01 +0100 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Thierry Reding , Krzysztof Kozlowski Cc: kernel@pengutronix.de, Alim Akhtar , linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-pwm@vger.kernel.org Subject: [PATCH 19/30] pwm: samsung: Convert to platform remove callback returning void Date: Fri, 3 Mar 2023 19:54:34 +0100 Message-Id: <20230303185445.2112695-20-u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.39.1 In-Reply-To: <20230303185445.2112695-1-u.kleine-koenig@pengutronix.de> References: <20230303185445.2112695-1-u.kleine-koenig@pengutronix.de> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1631; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=O8JDZmZIgjMwEr4lKcC5KC3SI4hyLS5O1WHmmCd4ACY=; b=owEBbQGS/pANAwAKAcH8FHityuwJAcsmYgBkAkJD+urETRJKcN3tGkScRpngsSWWj13MOVX/o sA2Gn2gLMiJATMEAAEKAB0WIQR+cioWkBis/z50pAvB/BR4rcrsCQUCZAJCQwAKCRDB/BR4rcrs CYZXB/9OmLOE52AEw3oirog5BImozxV+NA94rkO7DXRpdXlEPnd5b+BwfDBzSImIALFQwnA8gtu H6VGc0znhTyem4yJOeWbq1nNgh3I9UXLl4pmrqCPgyaFa0vVpdof2A9kF2o8VNsKs9dVDgLu0Ye s0mc/cr8Sdg2ooLPWUhdKgDaC7vlpbac0HaO29j+Tfbg6m9LVBAgnwXp/ncTccY+wFmKJgL//Zn K7dwhDkJTpTxkaZYPruYh/S+0JV66QZNd8LJGgBBFlgf+EC/AMXODFlFMgWfNZyefq1PVKFeUKf Xh0ZUA8RoMaHSl/QGqF41FdDRvtuscF26M2qsR+ZN4YmKpuo 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-samsung-soc@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@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/pwm/pwm-samsung.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/pwm/pwm-samsung.c b/drivers/pwm/pwm-samsung.c index 9c5b4f515641..e8828f57ab15 100644 --- a/drivers/pwm/pwm-samsung.c +++ b/drivers/pwm/pwm-samsung.c @@ -621,15 +621,13 @@ static int pwm_samsung_probe(struct platform_device *pdev) return 0; } -static int pwm_samsung_remove(struct platform_device *pdev) +static void pwm_samsung_remove(struct platform_device *pdev) { struct samsung_pwm_chip *chip = platform_get_drvdata(pdev); pwmchip_remove(&chip->chip); clk_disable_unprepare(chip->base_clk); - - return 0; } #ifdef CONFIG_PM_SLEEP @@ -676,7 +674,7 @@ static struct platform_driver pwm_samsung_driver = { .of_match_table = of_match_ptr(samsung_pwm_matches), }, .probe = pwm_samsung_probe, - .remove = pwm_samsung_remove, + .remove_new = pwm_samsung_remove, }; module_platform_driver(pwm_samsung_driver);