From nobody Fri Sep 20 12:41:53 2024 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 5BA2DCE7A95 for ; Mon, 25 Sep 2023 09:56:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230505AbjIYJ4l (ORCPT ); Mon, 25 Sep 2023 05:56:41 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48016 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230074AbjIYJzx (ORCPT ); Mon, 25 Sep 2023 05:55:53 -0400 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 AFEFAE3 for ; Mon, 25 Sep 2023 02:55:46 -0700 (PDT) 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 1qkiJa-00083B-ND; Mon, 25 Sep 2023 11:55:42 +0200 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 1qkiJa-008q0T-64; Mon, 25 Sep 2023 11:55:42 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1qkiJZ-004dmI-TM; Mon, 25 Sep 2023 11:55:41 +0200 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= To: Heiko Stuebner Cc: linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH 30/40] soc/rockchip: io-domain: Convert to platform remove callback returning void Date: Mon, 25 Sep 2023 11:55:21 +0200 Message-Id: <20230925095532.1984344-31-u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230925095532.1984344-1-u.kleine-koenig@pengutronix.de> References: <20230925095532.1984344-1-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=1863; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=dSb9QNeIckA738H8tOK4mdlXe6+NMGUKtANgI6GyJvY=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBlEVhhLmCL9V7I1ameNsoabvEahY8rsNxRFzmCZ MhyoiSvkuaJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZRFYYQAKCRCPgPtYfRL+ TqsQB/9O+lvyEqVpjhB5clMRQGvlRE2E4pIuH64H6vN9WvwD5VS8yymgO0poaWwThVyUFi+99fT U093S8k4KltHmhp1f3W6QsxW5PRVITqv1aAfgbppx3udLWVOGS0Kxddhx6IQC6B1BH0ObMYLeS+ IyUyRbRc6+6yg6g47KD97bvsnYI0v7WSsNoYgqIFq6/q1qqc9cQcXpX+52TtX14VBmjcAc+8Z09 +4iATbjiqKUDmFD46IaH6VEfdqTT3kCBNefhCFKrhSxJR1Fphp7M0lRSrxo0+rE2e65cnk/OJXo MahpxRkHCxfat45eiM6+ExAZ7EOdKL3c+6aMRulj8Mk7KaL/ 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/soc/rockchip/io-domain.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/soc/rockchip/io-domain.c b/drivers/soc/rockchip/io-dom= ain.c index 6619256c2d11..18f809c160a7 100644 --- a/drivers/soc/rockchip/io-domain.c +++ b/drivers/soc/rockchip/io-domain.c @@ -687,7 +687,7 @@ static int rockchip_iodomain_probe(struct platform_devi= ce *pdev) return ret; } =20 -static int rockchip_iodomain_remove(struct platform_device *pdev) +static void rockchip_iodomain_remove(struct platform_device *pdev) { struct rockchip_iodomain *iod =3D platform_get_drvdata(pdev); int i; @@ -699,13 +699,11 @@ static int rockchip_iodomain_remove(struct platform_d= evice *pdev) regulator_unregister_notifier(io_supply->reg, &io_supply->nb); } - - return 0; } =20 static struct platform_driver rockchip_iodomain_driver =3D { .probe =3D rockchip_iodomain_probe, - .remove =3D rockchip_iodomain_remove, + .remove_new =3D rockchip_iodomain_remove, .driver =3D { .name =3D "rockchip-iodomain", .of_match_table =3D rockchip_iodomain_match, --=20 2.40.1