From patchwork Wed Sep 27 08:10:37 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: 13400330 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 DA0F8E810A5 for ; Wed, 27 Sep 2023 08:11:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230180AbjI0ILF (ORCPT ); Wed, 27 Sep 2023 04:11:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33034 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230182AbjI0ILB (ORCPT ); Wed, 27 Sep 2023 04:11:01 -0400 Received: from metis.whiteo.stw.pengutronix.de (metis.whiteo.stw.pengutronix.de [IPv6:2a0a:edc0:2:b01:1d::104]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9F5D1CCD for ; Wed, 27 Sep 2023 01:10:56 -0700 (PDT) Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1qlPdD-00089G-KC; Wed, 27 Sep 2023 10:10:51 +0200 Received: from [2a0a:edc0:0:900:1d::77] (helo=ptz.office.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1qlPdD-009I8I-0h; Wed, 27 Sep 2023 10:10:51 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1qlPdC-005BRa-NJ; Wed, 27 Sep 2023 10:10:50 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Gerd Haeussler , Xing Tong Wu , Tobias Schaffner , Hans de Goede , =?utf-8?q?Ilpo_J=C3=A4rvinen?= , Mark Gross Cc: platform-driver-x86@vger.kernel.org, linux-kernel@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH 24/27] platform/x86/siemens: simatic-ipc-batt: Convert to platform remove callback returning void Date: Wed, 27 Sep 2023 10:10:37 +0200 Message-Id: <20230927081040.2198742-25-u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230927081040.2198742-1-u.kleine-koenig@pengutronix.de> References: <20230927081040.2198742-1-u.kleine-koenig@pengutronix.de> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1897; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=U+EVuue4dcy4JngvRLYcxQ86hJmTobawp5GDBK/mQb4=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBlE+N52b9a1e/I3FLntCEoj7l2JDKoiPZ0brnVI lt0GXyKq5eJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZRPjeQAKCRCPgPtYfRL+ TprgCACcjwpGAPSTmBGWtJNfSMfp6c8P0VwUD+Wg581erlXeDhKPJIGJpMRiPQL0GiL7Emy0NU0 +aqdvMWQiGS2YLJ8yHgnCetrGOep1+iXklzs8Yy95KhTeiZfFtU6V21ru58M8QLKBwFDBHo1S+x qgpup8xfuuehpLJpXCoqS4siXA81P6CCUIIwi96CpvD8w4xZJZTmLbyoYjaCcZ7/v8INlMRh6H1 EN82iqkFKozLBc+RXdpbRWhULLxAI2NDW4EtkDQoEEVGjH7B2Sdi8Egmk3XxDfo1P/FSU/Ol2c5 f0pjp//0eLuwjMMIEoauvMw9oAAW7X6MpU8LFGS+XB/FAt6B 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.whiteo.stw.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 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 --- drivers/platform/x86/siemens/simatic-ipc-batt.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/platform/x86/siemens/simatic-ipc-batt.c b/drivers/platform/x86/siemens/simatic-ipc-batt.c index 07cd4944de32..c6dd263b4ee3 100644 --- a/drivers/platform/x86/siemens/simatic-ipc-batt.c +++ b/drivers/platform/x86/siemens/simatic-ipc-batt.c @@ -227,11 +227,9 @@ int simatic_ipc_batt_probe(struct platform_device *pdev, struct gpiod_lookup_tab } EXPORT_SYMBOL_GPL(simatic_ipc_batt_probe); -static int simatic_ipc_batt_io_remove(struct platform_device *pdev) +static void simatic_ipc_batt_io_remove(struct platform_device *pdev) { simatic_ipc_batt_remove(pdev, NULL); - - return 0; } static int simatic_ipc_batt_io_probe(struct platform_device *pdev) @@ -241,7 +239,7 @@ static int simatic_ipc_batt_io_probe(struct platform_device *pdev) static struct platform_driver simatic_ipc_batt_driver = { .probe = simatic_ipc_batt_io_probe, - .remove = simatic_ipc_batt_io_remove, + .remove_new = simatic_ipc_batt_io_remove, .driver = { .name = KBUILD_MODNAME, },