From patchwork Mon Sep 18 08:59:41 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: 13389240 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 130B3C46CA1 for ; Mon, 18 Sep 2023 09:03:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240988AbjIRJAx (ORCPT ); Mon, 18 Sep 2023 05:00:53 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56892 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240870AbjIRJAN (ORCPT ); Mon, 18 Sep 2023 05:00:13 -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 6B81E123 for ; Mon, 18 Sep 2023 02:00:02 -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 1qiA6q-0008Op-6D; Mon, 18 Sep 2023 11:00:00 +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 1qiA6p-007B6Y-8X; Mon, 18 Sep 2023 10:59:59 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1qiA6o-002Z9Z-Vf; Mon, 18 Sep 2023 10:59:58 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Jean Delvare , Guenter Roeck Cc: linux-hwmon@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH 14/24] hwmon: (sch5636) Convert to platform remove callback returning void Date: Mon, 18 Sep 2023 10:59:41 +0200 Message-Id: <20230918085951.1234172-15-u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230918085951.1234172-1-u.kleine-koenig@pengutronix.de> References: <20230918085951.1234172-1-u.kleine-koenig@pengutronix.de> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1845; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=j8xaUCT3dTtmLiW7iOuAvLGnTMMAyl3wVD33QVj+sbE=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBlCBA6ovR9VgGMxua60JLlk8T0B/27TPRMMZwpn zXx+b3MfBiJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZQgQOgAKCRCPgPtYfRL+ TngOB/9NTACq594rtiBvzkA8vF5ZB5E+GTaommC4cmNLA1YBQIZCFOWzWJD5yHL1jZx+i2Q5Nuk N7UOBxW1DASV4K84M+HY45YX/5Ty3/xxdaFYwGQ9XkYuA0uu4/lHZXW+cf3A2rbHCyaJdNuOeeV 5rUsLkSUFfjWOYyosqAvBiDMjmWUVFbzdlmamCld5BFS70xEps2cBnPbKCVx3/+pEKnrQtXWkYL C47FkAHUFzn5JpbFENqm/h6baxo3kpd7mtixPlonIfml4xqe6bquINGOFKP+5VJ9G21R8IUKgrm /hrUJuyfmRuKuA692PGAZ7vFa2blKIdIbGL8d2pHYckeMjK9 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-hwmon@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-hwmon@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() is 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 --- drivers/hwmon/sch5636.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/hwmon/sch5636.c b/drivers/hwmon/sch5636.c index 269757bc3a9e..6e6d54158474 100644 --- a/drivers/hwmon/sch5636.c +++ b/drivers/hwmon/sch5636.c @@ -367,7 +367,7 @@ static struct sensor_device_attribute sch5636_fan_attr[] = { SENSOR_ATTR_RO(fan8_alarm, fan_alarm, 7), }; -static int sch5636_remove(struct platform_device *pdev) +static void sch5636_remove(struct platform_device *pdev) { struct sch5636_data *data = platform_get_drvdata(pdev); int i; @@ -385,8 +385,6 @@ static int sch5636_remove(struct platform_device *pdev) for (i = 0; i < SCH5636_NO_FANS * 3; i++) device_remove_file(&pdev->dev, &sch5636_fan_attr[i].dev_attr); - - return 0; } static int sch5636_probe(struct platform_device *pdev) @@ -515,7 +513,7 @@ static struct platform_driver sch5636_driver = { .name = DRVNAME, }, .probe = sch5636_probe, - .remove = sch5636_remove, + .remove_new = sch5636_remove, .id_table = sch5636_device_id, };