From patchwork Wed May 17 23:02:09 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: 13245925 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 2C9B5C7EE23 for ; Wed, 17 May 2023 23:04:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229981AbjEQXEI (ORCPT ); Wed, 17 May 2023 19:04:08 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46042 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229953AbjEQXEE (ORCPT ); Wed, 17 May 2023 19:04:04 -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 3A8A6526E for ; Wed, 17 May 2023 16:03:33 -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-0008Oh-2p; 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-000wtZ-Gw; 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 1pzQAZ-005UZW-DM; Thu, 18 May 2023 01:02:55 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Vladimir Zapolskiy , Alan Stern , Greg Kroah-Hartman Cc: linux-arm-kernel@lists.infradead.org, linux-usb@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH 67/97] usb: ohci-nxp: Convert to platform remove callback returning void Date: Thu, 18 May 2023 01:02:09 +0200 Message-Id: <20230517230239.187727-68-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=1846; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=h7oAuprEWjC3/8xhmUO7guBCsplrTBMLffMOTy85L0o=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkZVyH1yQbkFw5cNu+1Avg8LKv5VTIPmdOiijid mcfD2kbYzOJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZGVchwAKCRCPgPtYfRL+ TqwVB/wPGUOLU2nvajEW+60e+ycBAgXjJg/xaLMHQG3man0d2rF+t3F04+c2aKiQ6IDh8Lm7lJR zJjV0n8hUnwYKRv6FezYjtudEVlhE8xKde3Hp4pI9U+mMOIrNDE8JWD8ocvOghZMChoJ01dxXHP ELn5AMTru7KD1RwqtjlyAvXZsjb13AVHvjDLipEdYploadG/VOT+h0GTf/tQIimcb4qsCc/rwwe 69GmPMAFJE1srTkdYsGTwefnXzlgM67aGNzRlU3pMQa+bncwaxUDHyZK5Z/qujg7hIqBiYG6XnA bdmf7BQih3MMZNLJ1XYIx7Yo1WuvdfWt7lBv+asAyBdwOAFY 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/ohci-nxp.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/usb/host/ohci-nxp.c b/drivers/usb/host/ohci-nxp.c index 5b32e683e367..c04b2af5c766 100644 --- a/drivers/usb/host/ohci-nxp.c +++ b/drivers/usb/host/ohci-nxp.c @@ -237,7 +237,7 @@ static int ohci_hcd_nxp_probe(struct platform_device *pdev) return ret; } -static int ohci_hcd_nxp_remove(struct platform_device *pdev) +static void ohci_hcd_nxp_remove(struct platform_device *pdev) { struct usb_hcd *hcd = platform_get_drvdata(pdev); @@ -246,8 +246,6 @@ static int ohci_hcd_nxp_remove(struct platform_device *pdev) usb_put_hcd(hcd); clk_disable_unprepare(usb_host_clk); isp1301_i2c_client = NULL; - - return 0; } /* work with hotplug and coldplug */ @@ -267,7 +265,7 @@ static struct platform_driver ohci_hcd_nxp_driver = { .of_match_table = of_match_ptr(ohci_hcd_nxp_match), }, .probe = ohci_hcd_nxp_probe, - .remove = ohci_hcd_nxp_remove, + .remove_new = ohci_hcd_nxp_remove, }; static int __init ohci_nxp_init(void)