From nobody Mon Dec 29 20:18:49 2025 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 77971C5AD4C for ; Thu, 23 Nov 2023 16:57:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345220AbjKWQ5J (ORCPT ); Thu, 23 Nov 2023 11:57:09 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33188 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229944AbjKWQ44 (ORCPT ); Thu, 23 Nov 2023 11:56:56 -0500 Received: from metis.whiteo.stw.pengutronix.de (metis.whiteo.stw.pengutronix.de [IPv6:2a0a:edc0:2:b01:1d::104]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 74297D54 for ; Thu, 23 Nov 2023 08:57:03 -0800 (PST) Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1r6D0f-00058S-UF; Thu, 23 Nov 2023 17:57:01 +0100 Received: from [2a0a:edc0:0:900:1d::77] (helo=ptz.office.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1r6D0f-00B55M-Ht; Thu, 23 Nov 2023 17:57:01 +0100 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1r6D0f-006ozw-8s; Thu, 23 Nov 2023 17:57:01 +0100 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= To: Lee Jones Cc: linux-kernel@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH v2 14/18] mfd: sm501: Convert to platform remove callback returning void Date: Thu, 23 Nov 2023 17:56:42 +0100 Message-ID: <20231123165627.492259-15-u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.42.0.586.gbc5204569f7d.dirty In-Reply-To: <20231123165627.492259-1-u.kleine-koenig@pengutronix.de> References: <20231123165627.492259-1-u.kleine-koenig@pengutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" X-Developer-Signature: v=1; a=openpgp-sha256; l=1850; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=zg/2ZKivK3j/zzzpz8S6gtZj3g6k3uJ+o38xadR7Krk=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBlX4RLVqlKlHQf/icLBp7mzF2JWyccRJ6kaVxD9 ZxwFFiBXvyJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZV+ESwAKCRCPgPtYfRL+ TpMwB/9Z7joueqrSTQ5o2Xb8R/dCAHqRR6UsmAR1YjWLq5pL1Rzpa8Gak2wetFc/nIU07qJdR7K QIe0DrE6Okv/OJUP5UVMdmr/pqRssuBnIPIZuKW43frusnGnaFvuDzX3/8l2GroW8zjPZ7ARjqx NKPlVjfutyeDb1+XH+rKXRR6lMuaLtVpeIMiALs2iKUFti3W9iSGd//bbEEbscyBkE9A3r82GOu iehYZd3xSfylBtB92N7zDDcgFVPWblukIYYrVTofG+LgS2U2zfGmu6UVE71Y2jU5KFREXnbcMEW 7XMoLoEi4jYdH+NA52nVtRDFVTHs6UCWwO+eJZZV2IPvjnQr X-Developer-Key: i=u.kleine-koenig@pengutronix.de; a=openpgp; fpr=0D2511F322BFAB1C1580266BE2DCDD9132669BD6 Content-Transfer-Encoding: quoted-printable 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.whiteo.stw.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-kernel@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@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() will be 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-K=C3=B6nig --- drivers/mfd/sm501.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/mfd/sm501.c b/drivers/mfd/sm501.c index 28027982cf69..b3592982a83b 100644 --- a/drivers/mfd/sm501.c +++ b/drivers/mfd/sm501.c @@ -1667,7 +1667,7 @@ static void sm501_pci_remove(struct pci_dev *dev) pci_disable_device(dev); } =20 -static int sm501_plat_remove(struct platform_device *dev) +static void sm501_plat_remove(struct platform_device *dev) { struct sm501_devdata *sm =3D platform_get_drvdata(dev); =20 @@ -1675,8 +1675,6 @@ static int sm501_plat_remove(struct platform_device *= dev) iounmap(sm->regs); =20 release_mem_region(sm->io_res->start, 0x100); - - return 0; } =20 static const struct pci_device_id sm501_pci_tbl[] =3D { @@ -1707,7 +1705,7 @@ static struct platform_driver sm501_plat_driver =3D { .of_match_table =3D of_sm501_match_tbl, }, .probe =3D sm501_plat_probe, - .remove =3D sm501_plat_remove, + .remove_new =3D sm501_plat_remove, .suspend =3D pm_sleep_ptr(sm501_plat_suspend), .resume =3D pm_sleep_ptr(sm501_plat_resume), }; --=20 2.42.0