From patchwork Wed May 17 23:01:09 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: 13245851 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 577DCC7EE2A for ; Wed, 17 May 2023 23:02:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229762AbjEQXC6 (ORCPT ); Wed, 17 May 2023 19:02:58 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44488 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229696AbjEQXCu (ORCPT ); Wed, 17 May 2023 19:02:50 -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 9807644A8 for ; Wed, 17 May 2023 16:02:49 -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 1pzQAO-0007jP-Uf; Thu, 18 May 2023 01:02:44 +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 1pzQAO-000wo2-6w; Thu, 18 May 2023 01:02:44 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pzQAN-005UVe-FE; Thu, 18 May 2023 01:02:43 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Peter Chen , Greg Kroah-Hartman , Thierry Reding , Jonathan Hunter Cc: linux-usb@vger.kernel.org, linux-tegra@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH 07/97] usb: chipidea/ci_hdrc_tegra: Convert to platform remove callback returning void Date: Thu, 18 May 2023 01:01:09 +0200 Message-Id: <20230517230239.187727-8-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=1873; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=63EJH4zRsCAjlTv4RDoaAYXCVSSuGmy2m/pYbXft39w=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkZVvyd0xAS4oiawnNnBIBolnhuu6gA/budC0kj mFUzAqAS+eJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZGVb8gAKCRCPgPtYfRL+ Tm2mB/9b+GjpuX9eU1nNGpdCu2vaONp+Sn2UlIT9vacUTcES09oPmfhxhYg2JhCK5BdLpKsGY4W UUo5Oo1eQkwRoSl1aYc5+uJi34x6f8R/OsTX9XoCJe6LDHZIZFwKPxWDgkMgAtWSOTG2f0CoWBJ AteK7LtmdqOEIGlSQVcf0utsI44ja4bPbvq3GwtBlIrpBNgjVHWLH5Z80lQQRo9cK6rvA4wbRJO 6AM/S/t9n+EbqLQy2NBwuF+vwbAbR1h2HjmeBMYMu+DwBlB2QVRKp9H7zv9uSuCsFFNtS9XImY5 2F+JElzNLaGCp6+PV3S4cb+BcWHG+7/0b7e/eHFmmHvy9Xlr 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/chipidea/ci_hdrc_tegra.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/usb/chipidea/ci_hdrc_tegra.c b/drivers/usb/chipidea/ci_hdrc_tegra.c index a72a9474afea..ca36d11a69ea 100644 --- a/drivers/usb/chipidea/ci_hdrc_tegra.c +++ b/drivers/usb/chipidea/ci_hdrc_tegra.c @@ -362,7 +362,7 @@ static int tegra_usb_probe(struct platform_device *pdev) return err; } -static int tegra_usb_remove(struct platform_device *pdev) +static void tegra_usb_remove(struct platform_device *pdev) { struct tegra_usb *usb = platform_get_drvdata(pdev); @@ -371,8 +371,6 @@ static int tegra_usb_remove(struct platform_device *pdev) pm_runtime_put_sync_suspend(&pdev->dev); pm_runtime_force_suspend(&pdev->dev); - - return 0; } static int __maybe_unused tegra_usb_runtime_resume(struct device *dev) @@ -410,7 +408,7 @@ static struct platform_driver tegra_usb_driver = { .pm = &tegra_usb_pm, }, .probe = tegra_usb_probe, - .remove = tegra_usb_remove, + .remove_new = tegra_usb_remove, }; module_platform_driver(tegra_usb_driver);