From patchwork Fri Mar 3 21:36:57 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: 13159489 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 E974BC64EC4 for ; Fri, 3 Mar 2023 21:37:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231867AbjCCVhm (ORCPT ); Fri, 3 Mar 2023 16:37:42 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48476 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231846AbjCCVhi (ORCPT ); Fri, 3 Mar 2023 16:37:38 -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 EDE0962D9C for ; Fri, 3 Mar 2023 13:37:37 -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 1pYD5s-00009O-5f; Fri, 03 Mar 2023 22:37:36 +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 1pYD5r-001eBA-HZ; Fri, 03 Mar 2023 22:37:35 +0100 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pYD5q-001wy1-AA; Fri, 03 Mar 2023 22:37:34 +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 15/34] watchdog: ie6xx: Convert to platform remove callback returning void Date: Fri, 3 Mar 2023 22:36:57 +0100 Message-Id: <20230303213716.2123717-16-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=1597; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=PY3cMeE4IAUNZ91V0oLVd/41FhzXd72iTtsjfresafs=; b=owEBbQGS/pANAwAKAcH8FHityuwJAcsmYgBkAmhDZOPK3tXm4Bga2cRT+8pPMmQHHcwMGhgUd x81ZW/FUxGJATMEAAEKAB0WIQR+cioWkBis/z50pAvB/BR4rcrsCQUCZAJoQwAKCRDB/BR4rcrs CQ7HB/0RN28C2LrjYxrG5hPFqIhddoWIZitK4MH9xLfmNb/ErDxe1AQWFMG0AOpho1IF95/XxUo VRb/1DWGmVEukJ7HgvXv+OrZlycnXOqkpRYy8lyZJJGpvT+zewti0ASY+vVa4JrVlDrB796Z8fj YBCs9mrpfYwBwbYnEfJPZ+HAp0Wnkes+2YzwSl6Hog98zmlV0L3ubLKXH5bJdu8TothDsYWy/y5 GvnVrfpooOP3jh4aGRZmuy53usewdVkwk7dINWwdW3eFzHiEz40Gu/q06WzZD2bdIgRGBsF/rjM 5HwA6dFFOOyjoBqXBAr2WTXYUzreDxU6GzsKvjm/ThnU8bfg 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/ie6xx_wdt.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/watchdog/ie6xx_wdt.c b/drivers/watchdog/ie6xx_wdt.c index 8f28993fab8b..e5cbb409df25 100644 --- a/drivers/watchdog/ie6xx_wdt.c +++ b/drivers/watchdog/ie6xx_wdt.c @@ -266,7 +266,7 @@ static int ie6xx_wdt_probe(struct platform_device *pdev) return ret; } -static int ie6xx_wdt_remove(struct platform_device *pdev) +static void ie6xx_wdt_remove(struct platform_device *pdev) { struct resource *res; @@ -276,13 +276,11 @@ static int ie6xx_wdt_remove(struct platform_device *pdev) ie6xx_wdt_debugfs_exit(); release_region(res->start, resource_size(res)); ie6xx_wdt_data.sch_wdtba = 0; - - return 0; } static struct platform_driver ie6xx_wdt_driver = { .probe = ie6xx_wdt_probe, - .remove = ie6xx_wdt_remove, + .remove_new = ie6xx_wdt_remove, .driver = { .name = DRIVER_NAME, },