From patchwork Wed May 17 23:01:22 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: 683281 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 9C9CBC7EE23 for ; Wed, 17 May 2023 23:03:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229772AbjEQXDR (ORCPT ); Wed, 17 May 2023 19:03:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44852 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229786AbjEQXDE (ORCPT ); Wed, 17 May 2023 19:03:04 -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 860165FD1 for ; Wed, 17 May 2023 16:02:59 -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 1pzQAS-0007ov-5X; Thu, 18 May 2023 01:02:48 +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 1pzQAQ-000wp6-QM; Thu, 18 May 2023 01:02:46 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pzQAQ-005UWV-3N; Thu, 18 May 2023 01:02:46 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Andy Gross , Bjorn Andersson , Thinh Nguyen , Greg Kroah-Hartman Cc: Konrad Dybcio , linux-arm-msm@vger.kernel.org, linux-usb@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH 20/97] usb: dwc3-qcom: Convert to platform remove callback returning void Date: Thu, 18 May 2023 01:01:22 +0200 Message-Id: <20230517230239.187727-21-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=1881; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=zshZZOKhKaOmXjjFZX/6UJ2ZzFeLN5Dfj+shPazq61Q=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkZVwBD/efn5OCC88J/zQyrTwnXKuKpi6YIJ6a7 bnyjZ0bxM6JATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZGVcAQAKCRCPgPtYfRL+ Tn3kCACcNTvD1PlNtNphLALqpQ9cn85j8jNjoOgOfCKP4TvGbBpx+75R00rwmCxVxfKmKyw5QrJ vhItHXrWFUzm/Y1TkK+Qjxu1ELgVhsNmb2dh5SgMOphNhGk4jVldhUAi1YR0NmaPYw04fT0EQe3 A5F0vmIpGqXD+xe8AmgygDHyu2R5Dk3rH8y2xCfee9MbZWi8/lggYDHRX1Cyfl44kvKLkoMrUI7 uYbUxfaIMZG9F6nTEFKvLLZk64aO6mmZIxaGe0MSx5E2CRgDLSUAYxYlll5aMD1VAiauteV5jsw g7c8yHQ/XrnVklovjrHzyXl0wkN5ipX1fzz33EZZOmsA/g0V 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 Acked-by: Thinh Nguyen --- drivers/usb/dwc3/dwc3-qcom.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c index 959fc925ca7c..167f851c8e59 100644 --- a/drivers/usb/dwc3/dwc3-qcom.c +++ b/drivers/usb/dwc3/dwc3-qcom.c @@ -938,7 +938,7 @@ static int dwc3_qcom_probe(struct platform_device *pdev) return ret; } -static int dwc3_qcom_remove(struct platform_device *pdev) +static void dwc3_qcom_remove(struct platform_device *pdev) { struct dwc3_qcom *qcom = platform_get_drvdata(pdev); struct device *dev = &pdev->dev; @@ -958,8 +958,6 @@ static int dwc3_qcom_remove(struct platform_device *pdev) pm_runtime_allow(dev); pm_runtime_disable(dev); - - return 0; } static int __maybe_unused dwc3_qcom_pm_suspend(struct device *dev) @@ -1052,7 +1050,7 @@ MODULE_DEVICE_TABLE(acpi, dwc3_qcom_acpi_match); static struct platform_driver dwc3_qcom_driver = { .probe = dwc3_qcom_probe, - .remove = dwc3_qcom_remove, + .remove_new = dwc3_qcom_remove, .driver = { .name = "dwc3-qcom", .pm = &dwc3_qcom_dev_pm_ops,