From patchwork Wed May 17 23:02:21 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: 13245905 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 94552C7EE22 for ; Wed, 17 May 2023 23:03:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229784AbjEQXDm (ORCPT ); Wed, 17 May 2023 19:03:42 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45278 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229850AbjEQXDU (ORCPT ); Wed, 17 May 2023 19:03:20 -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 E24B96E8B for ; Wed, 17 May 2023 16:03:03 -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-0008P8-Cg; 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-000wth-Nb; 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 1pzQAc-005UaJ-1R; Thu, 18 May 2023 01:02:58 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Alan Stern , Greg Kroah-Hartman Cc: linux-usb@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH 79/97] usb: uhci-grlib: Convert to platform remove callback returning void Date: Thu, 18 May 2023 01:02:21 +0200 Message-Id: <20230517230239.187727-80-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=1884; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=zFIZ8upc3XCaeowtE0Lngd9b4UTM37aGY8JhPPpoYuo=; b=owGbwMvMwMXY3/A7olbonx/jabUkhpTUmD09+fcDKkSdLIoaW77LJOnGX9aNMXrZmrh2ryuTg olamnEnozELAyMXg6yYIot945pMqyq5yM61/y7DDGJlApnCwMUpABP5uZSDYXLDbeebmq9tTb7q /2x9fnFa1aSOFxlfWWuqmtVk/25a6L6icrpxKbvC9Tj26+Wfzb+9UOZ8oWT1hDND5uHEHH2+x1c 80rw/M36vMHwT5MssejCx6l328T9/t1ZdDl3IV3SxakLYtTNf+eP/rzzaevmmnJnK48Pe7IXs9g Knu1pUtjir1edw3zDa03j2/V/lf9wP3t630gmb9Cvn0lKhd3vPRu5mYF9a9jR3Xt+PhF3SUulh4 hrPji+ceTNa8qUFQ96jjrzd7wODH3xi0T6sHbRyi1CxpZOIgutbvhjXZQauq9vjec/UhnS4JSX+ KT1ocvKMjvx8Fi2G8jevVv+s3utcsLrdT9836Yf9t6QFAA== 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/uhci-grlib.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/usb/host/uhci-grlib.c b/drivers/usb/host/uhci-grlib.c index 907d5f01edfd..ac3fc5970315 100644 --- a/drivers/usb/host/uhci-grlib.c +++ b/drivers/usb/host/uhci-grlib.c @@ -147,7 +147,7 @@ static int uhci_hcd_grlib_probe(struct platform_device *op) return rv; } -static int uhci_hcd_grlib_remove(struct platform_device *op) +static void uhci_hcd_grlib_remove(struct platform_device *op) { struct usb_hcd *hcd = platform_get_drvdata(op); @@ -157,8 +157,6 @@ static int uhci_hcd_grlib_remove(struct platform_device *op) irq_dispose_mapping(hcd->irq); usb_put_hcd(hcd); - - return 0; } /* Make sure the controller is quiescent and that we're not using it @@ -185,7 +183,7 @@ MODULE_DEVICE_TABLE(of, uhci_hcd_grlib_of_match); static struct platform_driver uhci_grlib_driver = { .probe = uhci_hcd_grlib_probe, - .remove = uhci_hcd_grlib_remove, + .remove_new = uhci_hcd_grlib_remove, .shutdown = uhci_hcd_grlib_shutdown, .driver = { .name = "grlib-uhci",