From patchwork Wed May 17 23:02:18 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: 683263 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 165DCC7EE22 for ; Wed, 17 May 2023 23:03:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229882AbjEQXDr (ORCPT ); Wed, 17 May 2023 19:03:47 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45260 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229884AbjEQXDW (ORCPT ); Wed, 17 May 2023 19:03:22 -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 035347284 for ; Wed, 17 May 2023 16:03:04 -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 1pzQAe-0008PB-Jf; Thu, 18 May 2023 01:03:00 +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 1pzQAc-000wti-Ou; Thu, 18 May 2023 01:02:58 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pzQAb-005Ua7-5k; Thu, 18 May 2023 01:02:57 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Greg Kroah-Hartman , "Gustavo A. R. Silva" Cc: linux-usb@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH 76/97] usb: oxu210hp-hcd: Convert to platform remove callback returning void Date: Thu, 18 May 2023 01:02:18 +0200 Message-Id: <20230517230239.187727-77-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=1816; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=WtBr02uVpsnynmA7DGznlg6jmmC1FMDGRtwJL1hxzmE=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkZVyq79ZL9HQCOCzYABpevMxBAN3EPwIWeaxKj lfl/K7QKEGJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZGVcqgAKCRCPgPtYfRL+ Tu+JB/9EgVLkrktvLERc7Y7l+/lOORQCvs8Fwvmtx6w6Q+wF+lMRo9LmPJfeEivDS7qLkhksY8q 34oQpuZOH/Yk0PeRPXdmFin9XICJOBksQUHWcZlEvRJgArpFVOOjQj/yixkrekJ9UdalVwe0GU0 rA4X5G2zd3cIMxRu6PL2Yb4AnTGAuX65F9+MY9ZfUXWoRl9I3wcwEHaCmiBBQT5wBgCJ7B6s8ID eOTtWPshWDZVhdm7IvhYYIr4opMUJR+0DXIWjvzzhR7bL+wwZ2B0zU3yUjgbz5HVaQr9jtxQJXC ScLZLxtuCyoOZz46ICKvAt8cziK6zlF53ass858aRdVnPxYI 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/host/oxu210hp-hcd.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/usb/host/oxu210hp-hcd.c b/drivers/usb/host/oxu210hp-hcd.c index f998d3f1a78a..50c1ccabb0f5 100644 --- a/drivers/usb/host/oxu210hp-hcd.c +++ b/drivers/usb/host/oxu210hp-hcd.c @@ -4278,14 +4278,12 @@ static void oxu_remove(struct platform_device *pdev, struct usb_hcd *hcd) usb_put_hcd(hcd); } -static int oxu_drv_remove(struct platform_device *pdev) +static void oxu_drv_remove(struct platform_device *pdev) { struct oxu_info *info = platform_get_drvdata(pdev); oxu_remove(pdev, info->hcd[0]); oxu_remove(pdev, info->hcd[1]); - - return 0; } static void oxu_drv_shutdown(struct platform_device *pdev) @@ -4317,7 +4315,7 @@ static int oxu_drv_resume(struct device *dev) static struct platform_driver oxu_driver = { .probe = oxu_drv_probe, - .remove = oxu_drv_remove, + .remove_new = oxu_drv_remove, .shutdown = oxu_drv_shutdown, .suspend = oxu_drv_suspend, .resume = oxu_drv_resume,