From patchwork Mon Sep 18 13:36:41 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: 724332 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 3D888C46CA1 for ; Mon, 18 Sep 2023 17:14:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231509AbjIRROy (ORCPT ); Mon, 18 Sep 2023 13:14:54 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41994 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231405AbjIRROx (ORCPT ); Mon, 18 Sep 2023 13:14:53 -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 7651E1FED for ; Mon, 18 Sep 2023 09:10:53 -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 1qiER3-0001wC-Pt; Mon, 18 Sep 2023 15:37:09 +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 1qiER3-007EYo-55; Mon, 18 Sep 2023 15:37:09 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1qiER2-002fWg-SA; Mon, 18 Sep 2023 15:37:08 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Sebastian Reichel Cc: linux-pm@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH 13/32] power: supply: goldfish_battery: Convert to platform remove callback returning void Date: Mon, 18 Sep 2023 15:36:41 +0200 Message-Id: <20230918133700.1254499-14-u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230918133700.1254499-1-u.kleine-koenig@pengutronix.de> References: <20230918133700.1254499-1-u.kleine-koenig@pengutronix.de> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1930; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=y72EgNf7ctYp9lWq0PeLJDCgY7D5jVZUxz3iBX7F2jk=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBlCFJf3yS00YSrK648+vECAajvRAkSVYCEXyZ39 vb40PQmF3CJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZQhSXwAKCRCPgPtYfRL+ TrPyCAC0nrKtPc6swKT6BLF/PQg2Wn50MgNiHvV4YQIG0jN01xJQVeg1bknBD7iJ/WV0bsTGcMi f5Run/7woOiMzKYh9GfYSL72Ifzxa7fbCEshHtxSgrymCe8xPkb6wCoqf8us165pQIFhsc9Zy64 SqfdbmN49WDbSiGRhMQZtB1Q3gS9g7PdkIu90zeCsynWoKYK2cI0DAFd+PE5+EZUWumTJihwTpP oWfO38LiDKNiWDi6UQuxXC30XinBx0dKySJtHjfNaMxIIR2Bx75ke6v1Kz4iRiXH67p01n75L5x kriB8KnDq+0L4qAJmqFFh7J4aiPDwTedHH0refic8vPqCW4j 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() 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/power/supply/goldfish_battery.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/power/supply/goldfish_battery.c b/drivers/power/supply/goldfish_battery.c index a58d713d75ce..8bb645ad1e5d 100644 --- a/drivers/power/supply/goldfish_battery.c +++ b/drivers/power/supply/goldfish_battery.c @@ -249,13 +249,12 @@ static int goldfish_battery_probe(struct platform_device *pdev) return 0; } -static int goldfish_battery_remove(struct platform_device *pdev) +static void goldfish_battery_remove(struct platform_device *pdev) { struct goldfish_battery_data *data = platform_get_drvdata(pdev); power_supply_unregister(data->battery); power_supply_unregister(data->ac); - return 0; } static const struct of_device_id goldfish_battery_of_match[] = { @@ -274,7 +273,7 @@ MODULE_DEVICE_TABLE(acpi, goldfish_battery_acpi_match); static struct platform_driver goldfish_battery_device = { .probe = goldfish_battery_probe, - .remove = goldfish_battery_remove, + .remove_new = goldfish_battery_remove, .driver = { .name = "goldfish-battery", .of_match_table = goldfish_battery_of_match,