From patchwork Wed May 17 23:02:32 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: 683258 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 5F7AFC7EE2E for ; Wed, 17 May 2023 23:04:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229939AbjEQXEE (ORCPT ); Wed, 17 May 2023 19:04:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45976 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229941AbjEQXED (ORCPT ); Wed, 17 May 2023 19:04:03 -0400 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 DCA755FD1 for ; Wed, 17 May 2023 16:03:30 -0700 (PDT) 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 1pzQAg-0000AF-Cp; Thu, 18 May 2023 01:03:02 +0200 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 1pzQAf-000wup-FX; Thu, 18 May 2023 01:03:01 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pzQAe-005Ub5-AH; Thu, 18 May 2023 01:03:00 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Heikki Krogerus , Greg Kroah-Hartman , Bjorn Andersson Cc: linux-usb@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH 90/97] usb: typec: mux: gpio-sbu: Convert to platform remove callback returning void Date: Thu, 18 May 2023 01:02:32 +0200 Message-Id: <20230517230239.187727-91-u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230517230239.187727-1-u.kleine-koenig@pengutronix.de> References: <20230517230239.187727-1-u.kleine-koenig@pengutronix.de> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1936; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=qjAzdgMwqEwupxRubXSTpAyidjKfJ+8kW4+IpN4xQt0=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkZVzvlZrki88pByhT+NB+qsOry1koP/h1cyjcq qTnquxbT0WJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZGVc7wAKCRCPgPtYfRL+ TlsvB/9KpjhgWNmHNL6NRUGdFO6A0vfecADkswWLpwS32QMkXRmoHEqDjhUxtYoJe0D1VgMmoK4 CXvWlwmyKOvmcuKBQMH0674NXOiO0I179JLFG89iWCU3BrAvHbJQgWx9QkqdKxx6/cXYuD/lVfk RpULl+kYXms6ZhVP5LxKfMgH9hi4HHCUCUopdcwruBTvQvjCSAmMuEtxN+g06/d2/vslYboVoWd LUmcB1jPHdUeyvWpx2Vm/XOz6/KUxl0lj6fIMcmuHGntyna+PVDro6X+JxiFAH8jETKSwWrLbUP aSUqmhSlHB7eaw5RgBqnfnR+D0L5KuI4Ct1NqRHGcu4EBhNK 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-usb@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@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() is 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/usb/typec/mux/gpio-sbu-mux.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/usb/typec/mux/gpio-sbu-mux.c b/drivers/usb/typec/mux/gpio-sbu-mux.c index f62516dafe8f..94c5bc0f467d 100644 --- a/drivers/usb/typec/mux/gpio-sbu-mux.c +++ b/drivers/usb/typec/mux/gpio-sbu-mux.c @@ -140,7 +140,7 @@ static int gpio_sbu_mux_probe(struct platform_device *pdev) return 0; } -static int gpio_sbu_mux_remove(struct platform_device *pdev) +static void gpio_sbu_mux_remove(struct platform_device *pdev) { struct gpio_sbu_mux *sbu_mux = platform_get_drvdata(pdev); @@ -148,8 +148,6 @@ static int gpio_sbu_mux_remove(struct platform_device *pdev) typec_mux_unregister(sbu_mux->mux); typec_switch_unregister(sbu_mux->sw); - - return 0; } static const struct of_device_id gpio_sbu_mux_match[] = { @@ -160,7 +158,7 @@ MODULE_DEVICE_TABLE(of, gpio_sbu_mux_match); static struct platform_driver gpio_sbu_mux_driver = { .probe = gpio_sbu_mux_probe, - .remove = gpio_sbu_mux_remove, + .remove_new = gpio_sbu_mux_remove, .driver = { .name = "gpio_sbu_mux", .of_match_table = gpio_sbu_mux_match,