From patchwork Fri Mar 3 21:37:05 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: 13159495 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 3DB62C64EC4 for ; Fri, 3 Mar 2023 21:37:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231887AbjCCVhq (ORCPT ); Fri, 3 Mar 2023 16:37:46 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48522 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231863AbjCCVhk (ORCPT ); Fri, 3 Mar 2023 16:37:40 -0500 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 C21BA62DA6 for ; Fri, 3 Mar 2023 13:37:39 -0800 (PST) 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 1pYD5t-0000B4-Kd; Fri, 03 Mar 2023 22:37:37 +0100 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 1pYD5s-001eBj-LV; Fri, 03 Mar 2023 22:37:36 +0100 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pYD5s-001wyU-2c; Fri, 03 Mar 2023 22:37:36 +0100 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Wim Van Sebroeck , Guenter Roeck Cc: linux-watchdog@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH 23/34] watchdog: rdc321x: Convert to platform remove callback returning void Date: Fri, 3 Mar 2023 22:37:05 +0100 Message-Id: <20230303213716.2123717-24-u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.39.1 In-Reply-To: <20230303213716.2123717-1-u.kleine-koenig@pengutronix.de> References: <20230303213716.2123717-1-u.kleine-koenig@pengutronix.de> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1595; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=4Uc/GUbsJ5mGzo5yktgs+0ov7Pv+uSQWt7F9Cn9coHs=; b=owEBbQGS/pANAwAKAcH8FHityuwJAcsmYgBkAmhfrclGZ3TzSYbq6i+lqOQL5R6WRZU+97/DH UFoOQKiYMaJATMEAAEKAB0WIQR+cioWkBis/z50pAvB/BR4rcrsCQUCZAJoXwAKCRDB/BR4rcrs CR9rB/92QXbI6gAO+PddWUVLUeYdezWKSZ24LWMHD1JogN4gm3zl8RtEhlVwoi2XSGmUIEP5pmf XASjKM4iuEbbkQFAu6lcfV1t4JUIhk7035qIcUtkUKs/CK1P/yppM9o5TPmXbxmf2NJAmhXZBQw xJZ+uMqD5r0eVIA2ISZkZF89od1/L9hyoGVhWAsCjNk0oJzsS93pYqFvaq4vjZ1ka2FDQyKgwdu UjMn7JxBMKp5xXYGftbu2Lc32owWatxCc/HoEcVrzdlKLWxNbOIfpkkIIivXotckMyF3aHpUW4z 46YhR9XyYCPo2GRfxZLPYvd9+Y0ZnUpPkuLrUwgeUgQKhL8r 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-watchdog@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-watchdog@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 (mostly) ignored 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. 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: Guenter Roeck --- drivers/watchdog/rdc321x_wdt.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/watchdog/rdc321x_wdt.c b/drivers/watchdog/rdc321x_wdt.c index f0c94ea51c3e..6176f4343fc5 100644 --- a/drivers/watchdog/rdc321x_wdt.c +++ b/drivers/watchdog/rdc321x_wdt.c @@ -257,7 +257,7 @@ static int rdc321x_wdt_probe(struct platform_device *pdev) return 0; } -static int rdc321x_wdt_remove(struct platform_device *pdev) +static void rdc321x_wdt_remove(struct platform_device *pdev) { if (rdc321x_wdt_device.queue) { rdc321x_wdt_device.queue = 0; @@ -265,13 +265,11 @@ static int rdc321x_wdt_remove(struct platform_device *pdev) } misc_deregister(&rdc321x_wdt_misc); - - return 0; } static struct platform_driver rdc321x_wdt_driver = { .probe = rdc321x_wdt_probe, - .remove = rdc321x_wdt_remove, + .remove_new = rdc321x_wdt_remove, .driver = { .name = "rdc321x-wdt", },