From patchwork Thu Sep 28 07:06:54 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: 727908 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 80CA6CE7B04 for ; Thu, 28 Sep 2023 07:07:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230202AbjI1HHU (ORCPT ); Thu, 28 Sep 2023 03:07:20 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48148 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230494AbjI1HHO (ORCPT ); Thu, 28 Sep 2023 03:07:14 -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 CFE6FF9 for ; Thu, 28 Sep 2023 00:07:12 -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 1qll78-0002Q0-T7; Thu, 28 Sep 2023 09:07:10 +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 1qll78-009WBy-Fc; Thu, 28 Sep 2023 09:07:10 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1qll78-005ZXZ-6b; Thu, 28 Sep 2023 09:07:10 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Linus Walleij , Bartosz Golaszewski Cc: Andy Shevchenko , linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 11/23] gpio: mm-lantiq: Convert to platform remove callback returning void Date: Thu, 28 Sep 2023 09:06:54 +0200 Message-Id: <20230928070706.2290137-12-u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230928070706.2290137-1-u.kleine-koenig@pengutronix.de> References: <20230928070706.2290137-1-u.kleine-koenig@pengutronix.de> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1779; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=n5tiuRCZj+BI4ArBL1amsTPNue/ACzoBE2dS/KHIXLs=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBlFSRrWhba52Fylm7LFemgwnPLaJRVq+zUqKPqv OWYJQCLyxCJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZRUkawAKCRCPgPtYfRL+ TpCWB/9iGudW5Pk35ZktG7pTbbs8Uohfe6WU7C2v7LbHdrnJFYoyEx/B8EtE3xt2ZzFmXC/mRZN 8bNtV2KaTSAVDQYbWp2vzW708oSn9H285Mjh3rRS5OtP2oaX1TbGZZKg7cCpXTyIbiG1xbVboVc 3lhREAsWNG+5cmVK8+MHhXPTpVZ+2M0V9VYICvyGJGjXGtS4HRcVTWQX+LpDRODXn51oxiTDaB5 ggcCmP88teX0WcTozvX0PIkw+BW6VM7nB3AhMycLcaX3t8qzzNxhLtjvMv5RZ50kSoF/pxkT21X ZcPaHnQSxIlLesCQ0kJsp0NMUBG/KOfVqQbtW5NhPCEeTVyW 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: linux-gpio@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-gpio@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/gpio/gpio-mm-lantiq.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/gpio/gpio-mm-lantiq.c b/drivers/gpio/gpio-mm-lantiq.c index f3c158259636..e855c68c981b 100644 --- a/drivers/gpio/gpio-mm-lantiq.c +++ b/drivers/gpio/gpio-mm-lantiq.c @@ -121,13 +121,11 @@ static int ltq_mm_probe(struct platform_device *pdev) return of_mm_gpiochip_add_data(pdev->dev.of_node, &chip->mmchip, chip); } -static int ltq_mm_remove(struct platform_device *pdev) +static void ltq_mm_remove(struct platform_device *pdev) { struct ltq_mm *chip = platform_get_drvdata(pdev); of_mm_gpiochip_remove(&chip->mmchip); - - return 0; } static const struct of_device_id ltq_mm_match[] = { @@ -138,7 +136,7 @@ MODULE_DEVICE_TABLE(of, ltq_mm_match); static struct platform_driver ltq_mm_driver = { .probe = ltq_mm_probe, - .remove = ltq_mm_remove, + .remove_new = ltq_mm_remove, .driver = { .name = "gpio-mm-ltq", .of_match_table = ltq_mm_match,