From patchwork Sun Nov 5 09:47:14 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: 741203 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 88508C4167B for ; Sun, 5 Nov 2023 09:47:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229475AbjKEJra (ORCPT ); Sun, 5 Nov 2023 04:47:30 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57896 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229447AbjKEJr3 (ORCPT ); Sun, 5 Nov 2023 04:47:29 -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 723D7CF for ; Sun, 5 Nov 2023 01:47:26 -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 1qzZiy-0001rr-Qq; Sun, 05 Nov 2023 10:47:20 +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 1qzZiy-006l8u-Dg; Sun, 05 Nov 2023 10:47:20 +0100 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1qzZiy-00D8pg-4Q; Sun, 05 Nov 2023 10:47:20 +0100 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Sebastian Reichel Cc: Claudiu Beznea , Nicolas Ferre , Alexandre Belloni , linux-pm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kernel@pengutronix.de Subject: [PATCH 16/14] power: reset: at91-sama5d2_shdwc: Convert to platform remove callback returning void Date: Sun, 5 Nov 2023 10:47:14 +0100 Message-ID: <20231105094712.3706799-4-u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231104211501.3676352-16-u.kleine-koenig@pengutronix.de> References: <20231104211501.3676352-16-u.kleine-koenig@pengutronix.de> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1798; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=NX9M44dzctGA2wgTQeClr5SVXc0i9d4gkBGE5WsCp4Y=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBlR2ShpMJxkTzEO72pBfvQlcKuLSjDbPHa0ccWR +yW3UXuYb2JATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZUdkoQAKCRCPgPtYfRL+ TuKiCACvEsvdfznu0XeUeYm/JaCo/iQkdmcg0Nr/WYin+KOEKd13LjP5EBmrX1V3srmgb+mcBkZ VTCFj5Bwn2rYy5CzIG3bn/HpXMKy3FLXDxBaZzdiw+2IWoOOwUaKi0k+7YU1RZqR+CoivWLcDu+ sfQhAX9AiGyKeBMcMAyOOajkie6xL39XmxEdax1R9McjVjvmRWW/ZZqdcmZkmkZD9NG3BYn04/a t7Lki4hbAwuH7hyup80lV/JFA4OrtPoPQzZ0qWUpKQUh0XcxwFRrMpbWQ9OPEGW7Yq/9sLph9Pe OB417g8A7W6F6dhQ4/fBGedBnveWgo4VdRHdNzx4bMya61bX 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.whiteo.stw.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-pm@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@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-König Reviewed-by: Claudiu Beznea --- drivers/power/reset/at91-sama5d2_shdwc.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/power/reset/at91-sama5d2_shdwc.c b/drivers/power/reset/at91-sama5d2_shdwc.c index ef8add623363..af95c7b39cb3 100644 --- a/drivers/power/reset/at91-sama5d2_shdwc.c +++ b/drivers/power/reset/at91-sama5d2_shdwc.c @@ -421,7 +421,7 @@ static int at91_shdwc_probe(struct platform_device *pdev) return ret; } -static int at91_shdwc_remove(struct platform_device *pdev) +static void at91_shdwc_remove(struct platform_device *pdev) { struct shdwc *shdw = platform_get_drvdata(pdev); @@ -437,13 +437,11 @@ static int at91_shdwc_remove(struct platform_device *pdev) iounmap(shdw->pmc_base); clk_disable_unprepare(shdw->sclk); - - return 0; } static struct platform_driver at91_shdwc_driver = { .probe = at91_shdwc_probe, - .remove = at91_shdwc_remove, + .remove_new = at91_shdwc_remove, .driver = { .name = "at91-shdwc", .of_match_table = at91_shdwc_of_match,