From patchwork Wed May 17 23:02:03 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: 13245885 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 08A45C7EE2A for ; Wed, 17 May 2023 23:03:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229889AbjEQXD0 (ORCPT ); Wed, 17 May 2023 19:03:26 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44972 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229805AbjEQXDH (ORCPT ); Wed, 17 May 2023 19:03:07 -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 4C53761AF for ; Wed, 17 May 2023 16:03:01 -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 1pzQAb-0008I2-49; Thu, 18 May 2023 01:02:57 +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 1pzQAZ-000wsG-Cb; Thu, 18 May 2023 01:02:55 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pzQAY-005UZ8-4e; Thu, 18 May 2023 01:02:54 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Olav Kongas , Greg Kroah-Hartman Cc: linux-usb@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH 61/97] usb: isp116x-hcd: Convert to platform remove callback returning void Date: Thu, 18 May 2023 01:02:03 +0200 Message-Id: <20230517230239.187727-62-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=2058; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=OnyJtVMfx7k9+s48D/pTsYAcJRBUL0Qv2mqShtgy5Fk=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkZVxxQw0WpMmNWPv+7z+tAcmMnP6jt1Jt/wabn uIKg1tF3DeJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZGVccQAKCRCPgPtYfRL+ Tpz+CACgSVxRH3PozdwbI4j5l79SGMncgHXf6mo3YOD/ty3cbg2d/66lfmyCP0aqmHcoZbxhVXl oZSHaa9O40ktXava3ASHZvILRzxXN15oyq318Lr5CjbdarxzeMNWvsKUi5/eqppv72vERIH28TH tEOlpNNX4qDlyQ86K60HgJFhX0bQZFDoQ4HFttIz88tRHFX2oipkk9h7irXEOt/YL1kRpE1UAkY mZxhdpn+Wh0pJL3WNxokfX0tCbwI78OtDYQ6LHVnSulRYuuYm6X6Xdf+ff4wwBn+pkgRi7GaRYk 2jWl2MNd4zU1hWJPl6FbY0xAmvuNsMJNVCn3SeIkXVCI7W4o 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/isp116x-hcd.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/drivers/usb/host/isp116x-hcd.c b/drivers/usb/host/isp116x-hcd.c index 49ae01487af4..a82d8926e922 100644 --- a/drivers/usb/host/isp116x-hcd.c +++ b/drivers/usb/host/isp116x-hcd.c @@ -1526,14 +1526,14 @@ static const struct hc_driver isp116x_hc_driver = { /*----------------------------------------------------------------*/ -static int isp116x_remove(struct platform_device *pdev) +static void isp116x_remove(struct platform_device *pdev) { struct usb_hcd *hcd = platform_get_drvdata(pdev); struct isp116x *isp116x; struct resource *res; if (!hcd) - return 0; + return; isp116x = hcd_to_isp116x(hcd); remove_debug_file(isp116x); usb_remove_hcd(hcd); @@ -1548,7 +1548,6 @@ static int isp116x_remove(struct platform_device *pdev) release_mem_region(res->start, 2); usb_put_hcd(hcd); - return 0; } static int isp116x_probe(struct platform_device *pdev) @@ -1685,7 +1684,7 @@ MODULE_ALIAS("platform:isp116x-hcd"); static struct platform_driver isp116x_driver = { .probe = isp116x_probe, - .remove = isp116x_remove, + .remove_new = isp116x_remove, .suspend = isp116x_suspend, .resume = isp116x_resume, .driver = {