From patchwork Thu Mar 2 14:47:11 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: 13157368 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 AB62BC678D4 for ; Thu, 2 Mar 2023 14:47:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229969AbjCBOrt (ORCPT ); Thu, 2 Mar 2023 09:47:49 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38396 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229538AbjCBOrs (ORCPT ); Thu, 2 Mar 2023 09:47:48 -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 AB64218159 for ; Thu, 2 Mar 2023 06:47:46 -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 1pXkDb-0003rU-85; Thu, 02 Mar 2023 15:47:39 +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 1pXkDa-001LrI-Jk; Thu, 02 Mar 2023 15:47:38 +0100 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pXkDZ-001Zpm-R3; Thu, 02 Mar 2023 15:47:37 +0100 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Cezary Jackiewicz , Hans de Goede , Mark Gross Cc: kernel@pengutronix.de, Greg Kroah-Hartman , platform-driver-x86@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 08/29] platform/x86: compal-laptop: Convert to platform remove callback returning void Date: Thu, 2 Mar 2023 15:47:11 +0100 Message-Id: <20230302144732.1903781-9-u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.39.1 In-Reply-To: <20230302144732.1903781-1-u.kleine-koenig@pengutronix.de> References: <20230302144732.1903781-1-u.kleine-koenig@pengutronix.de> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1864; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=2FcRCflJvaecUEGlqoFBbAQbmPoh+cHoMH2b86C4p0s=; b=owEBbQGS/pANAwAKAcH8FHityuwJAcsmYgBkALahfyGEbwyFIZ/2N0J3qj3ymTNB0KR+nuX8B LhaekOFqSKJATMEAAEKAB0WIQR+cioWkBis/z50pAvB/BR4rcrsCQUCZAC2oQAKCRDB/BR4rcrs CWw6B/0SqxTeIkpbjeLgeQn8QgLD1ZpxFqsb+bXQ27zzQLCQtd9LZfgQJooPS71cLRZBGxZRj7b oOg2tNB4Kz4YnTB4C2rO4QzPcGUbwTXJAep9yZUPvY+1DSbKRrbfM8VbjT1DctOXnr2T6NVHz24 /WXcZJSHCkeDyVR+6pF05Ya9VEE1MjGnqvhAf2fsef5HSnUoAPK/i5Od/NobCYHal2/lVx+V9Hx 5JXgoNCzyusPjbvAyD8/1whKljMWg6DPkpT/eAvJnltCvBr1bVa/IrkAStsJD/RNmmu/glYLaJP zyYZUFpVOARSzTCTYPDtr+5dnutCmfmaQIFNdtsDMt97C8BJ 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: platform-driver-x86@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: platform-driver-x86@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/platform/x86/compal-laptop.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/drivers/platform/x86/compal-laptop.c b/drivers/platform/x86/compal-laptop.c index e10d2f64dfad..61c745490d71 100644 --- a/drivers/platform/x86/compal-laptop.c +++ b/drivers/platform/x86/compal-laptop.c @@ -1003,12 +1003,12 @@ static int compal_probe(struct platform_device *pdev) return err; } -static int compal_remove(struct platform_device *pdev) +static void compal_remove(struct platform_device *pdev) { struct compal_data *data; if (!extra_features) - return 0; + return; pr_info("Unloading: resetting fan control to motherboard\n"); pwm_disable_control(); @@ -1017,8 +1017,6 @@ static int compal_remove(struct platform_device *pdev) power_supply_unregister(data->psy); sysfs_remove_group(&pdev->dev.kobj, &compal_platform_attr_group); - - return 0; } static struct platform_driver compal_driver = { @@ -1026,7 +1024,7 @@ static struct platform_driver compal_driver = { .name = DRIVER_NAME, }, .probe = compal_probe, - .remove = compal_remove, + .remove_new = compal_remove, }; static int __init compal_init(void)