From patchwork Wed May 17 23:02:06 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: 13245923 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 2919FC77B75 for ; Wed, 17 May 2023 23:04:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229962AbjEQXEG (ORCPT ); Wed, 17 May 2023 19:04:06 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46022 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229944AbjEQXED (ORCPT ); Wed, 17 May 2023 19:04:03 -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 5FD3761A9 for ; Wed, 17 May 2023 16:03:32 -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 1pzQAc-0008LH-Sf; Thu, 18 May 2023 01:02:58 +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 1pzQAa-000wsu-Uc; Thu, 18 May 2023 01:02:56 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pzQAY-005UZL-OV; Thu, 18 May 2023 01:02:54 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Alan Stern , Greg Kroah-Hartman , Nicolas Ferre , Alexandre Belloni , Claudiu Beznea Cc: linux-usb@vger.kernel.org, "moderated list:ARM/Microchip" , kernel@pengutronix.de Subject: [PATCH 64/97] usb: ohci-at91: Convert to platform remove callback returning void Date: Thu, 18 May 2023 01:02:06 +0200 Message-Id: <20230517230239.187727-65-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=1997; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=pQgq9pUQpD7LYIQdFFv6qN96jLnJk6T/5ZPZG1XwZlw=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkZVyESJOA8OHeVR46Xd+pF/tfVoVZD+GH01re6 QegbgbxP+CJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZGVchAAKCRCPgPtYfRL+ TnQkB/9/qROL2Kum4SAUk1GorGhA2yuCZ4D2wNA0jWQYzUNM78B0fEIWJvSicNEkkdAibHSao/o CyuFUUS2eybJnywFAG98wGlUI6EIiU5y02ZSIsEtGJK5K5Qph0njW1n8e5oGokbZuRplj/iLbN8 gI1iDUiWfCWnv9rVwciByn5GQAZHmsGv3NahTjT6MXlkt3GAXTGGzQq3xTBKdrm6HSUVJoO9fHQ sp+2FaQIXgGcICJY/dO7hNeenZ+yrbSi+RBGbUrZxT94j8h9ho0I69Q35WLPOTkJqW8i1lEya3J IV8j4mBHbWnHnEVXVsy7lUBwYIxJKOWEpX5+SFhfa3PcSmnR 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 Reviewed-by: Claudiu Beznea --- drivers/usb/host/ohci-at91.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c index 533537ef3c21..b9ce8d80f20b 100644 --- a/drivers/usb/host/ohci-at91.c +++ b/drivers/usb/host/ohci-at91.c @@ -599,7 +599,7 @@ static int ohci_hcd_at91_drv_probe(struct platform_device *pdev) return usb_hcd_at91_probe(&ohci_at91_hc_driver, pdev); } -static int ohci_hcd_at91_drv_remove(struct platform_device *pdev) +static void ohci_hcd_at91_drv_remove(struct platform_device *pdev) { struct at91_usbh_data *pdata = dev_get_platdata(&pdev->dev); int i; @@ -611,7 +611,6 @@ static int ohci_hcd_at91_drv_remove(struct platform_device *pdev) device_init_wakeup(&pdev->dev, 0); usb_hcd_at91_remove(platform_get_drvdata(pdev), pdev); - return 0; } static int __maybe_unused @@ -683,7 +682,7 @@ static SIMPLE_DEV_PM_OPS(ohci_hcd_at91_pm_ops, ohci_hcd_at91_drv_suspend, static struct platform_driver ohci_hcd_at91_driver = { .probe = ohci_hcd_at91_drv_probe, - .remove = ohci_hcd_at91_drv_remove, + .remove_new = ohci_hcd_at91_drv_remove, .shutdown = usb_hcd_platform_shutdown, .driver = { .name = "at91_ohci",