From patchwork Wed May 17 23:01:25 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: 13245852 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 ECA98C7EE22 for ; Wed, 17 May 2023 23:02:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229756AbjEQXC7 (ORCPT ); Wed, 17 May 2023 19:02:59 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44506 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229699AbjEQXCw (ORCPT ); Wed, 17 May 2023 19:02:52 -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 1DCC649C1 for ; Wed, 17 May 2023 16:02:51 -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-0007pj-81; 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 1pzQAR-000wpO-IW; Thu, 18 May 2023 01:02:47 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pzQAQ-005UWg-Lw; Thu, 18 May 2023 01:02:46 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Linus Walleij , Greg Kroah-Hartman Cc: linux-usb@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH 23/97] usb: fotg210: Convert to platform remove callback returning void Date: Thu, 18 May 2023 01:01:25 +0200 Message-Id: <20230517230239.187727-24-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=1802; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=0EVPeeXYnFzs0REvfAsMPZGA7dNmwc9neKov2L8WQgI=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkZVwFvnGZXBo4p3f3EQVZdLtjjRzrSyhTAZDYI Ze+8JfUGSiJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZGVcBQAKCRCPgPtYfRL+ Tnw/CACZz9d/liDEloXB7xtHkr3RVszLunK7unuQ9BHU4D9SAoI02dR7pJ4+9sc8kG2usARE8ec BfcUEcfmgoQszSxqdX93ptqYx52vFB+uhhQoeuMqTlyfxeW8Y8tYbbyBU1862kdEv1uc7m2HY8i c/MLDo+qUVjt6CMEhKzDeOS3wfeog6w7z7+tLDbq4gtzzhBoG7YL8FS9cjgTwcbwR9pc2eCOuqP HsrOEuaR+BqtnL0qIw0T2N+XqgSuFp2BBMHtQf2iv6L/K3ZsV35wU7HaDxqXuMSVrxyGT32SHeF lUv0y48vE62TTuetRr05R/OhUggBblG8owhnfrUqpnJnbqQN 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: Linus Walleij --- drivers/usb/fotg210/fotg210-core.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/usb/fotg210/fotg210-core.c b/drivers/usb/fotg210/fotg210-core.c index cb75464ab290..958fc40eae86 100644 --- a/drivers/usb/fotg210/fotg210-core.c +++ b/drivers/usb/fotg210/fotg210-core.c @@ -165,7 +165,7 @@ static int fotg210_probe(struct platform_device *pdev) return ret; } -static int fotg210_remove(struct platform_device *pdev) +static void fotg210_remove(struct platform_device *pdev) { struct device *dev = &pdev->dev; enum usb_dr_mode mode; @@ -176,8 +176,6 @@ static int fotg210_remove(struct platform_device *pdev) fotg210_udc_remove(pdev); else fotg210_hcd_remove(pdev); - - return 0; } #ifdef CONFIG_OF @@ -196,7 +194,7 @@ static struct platform_driver fotg210_driver = { .of_match_table = of_match_ptr(fotg210_of_match), }, .probe = fotg210_probe, - .remove = fotg210_remove, + .remove_new = fotg210_remove, }; static int __init fotg210_init(void)