From patchwork Wed May 17 23:01:06 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: 683288 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 D827BC7EE2A for ; Wed, 17 May 2023 23:03:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229614AbjEQXDG (ORCPT ); Wed, 17 May 2023 19:03:06 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44604 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229742AbjEQXCz (ORCPT ); Wed, 17 May 2023 19:02:55 -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 4201E5276 for ; Wed, 17 May 2023 16:02:54 -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-0007jM-VU; Thu, 18 May 2023 01:02:45 +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 1pzQAN-000wnq-Nc; Thu, 18 May 2023 01:02:43 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pzQAM-005UVS-RB; Thu, 18 May 2023 01:02:42 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Peter Chen , Pawel Laszczak , Greg Kroah-Hartman Cc: Roger Quadros , Aswath Govindraju , linux-usb@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH 04/97] usb: cdns3-ti: Convert to platform remove callback returning void Date: Thu, 18 May 2023 01:01:06 +0200 Message-Id: <20230517230239.187727-5-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=1813; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=6cHGFuDRubMo/u0j3jZfx8+HrU/cy2x3P5NC9anFvQ4=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkZVvu+f00qSOpUuD3O7MJA56NyCrcwdHoSU6/x eYfla52PXmJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZGVb7gAKCRCPgPtYfRL+ TgghCACH/QHPokUz83rM2cp9biyR31BM9NVl5LNivkeYmIQl406VzyHdFnscBtkP/OSv/YjStIu rvmp0yrSbzDZjsHJbuc3FgeCGVdM6IWmgcGNk2wf5i2HKCzYiTBP+iUCFeooJ1BscbE35KiGU1r 8CwMJyOG7KonKvavj24zFYbuUb+mgcE1Q93ywFKSlEZIDwu/xulQkxWcgEXF3ju/bfNJpezJ0OH JcEacKdOq2VbFRQ0XFl2ryFGCKZBKo9EQ+nJpzOVxU7zkWa94uarJzOuzG/R8bP7tRgqRh7sU9R akwgnNm/+uVJAXYYAg8pR6VvL3wlOCvLOFXP82DeMVLSnBHX 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/cdns3/cdns3-ti.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/usb/cdns3/cdns3-ti.c b/drivers/usb/cdns3/cdns3-ti.c index 07c318770362..81b9132e3aaa 100644 --- a/drivers/usb/cdns3/cdns3-ti.c +++ b/drivers/usb/cdns3/cdns3-ti.c @@ -199,7 +199,7 @@ static int cdns_ti_remove_core(struct device *dev, void *c) return 0; } -static int cdns_ti_remove(struct platform_device *pdev) +static void cdns_ti_remove(struct platform_device *pdev) { struct device *dev = &pdev->dev; @@ -208,8 +208,6 @@ static int cdns_ti_remove(struct platform_device *pdev) pm_runtime_disable(dev); platform_set_drvdata(pdev, NULL); - - return 0; } static const struct of_device_id cdns_ti_of_match[] = { @@ -221,7 +219,7 @@ MODULE_DEVICE_TABLE(of, cdns_ti_of_match); static struct platform_driver cdns_ti_driver = { .probe = cdns_ti_probe, - .remove = cdns_ti_remove, + .remove_new = cdns_ti_remove, .driver = { .name = "cdns3-ti", .of_match_table = cdns_ti_of_match,