From patchwork Mon Sep 18 13:36:58 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: 724584 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 26EC0CD13D2 for ; Mon, 18 Sep 2023 16:35:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230326AbjIRQfR (ORCPT ); Mon, 18 Sep 2023 12:35:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59006 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229937AbjIRQe4 (ORCPT ); Mon, 18 Sep 2023 12:34:56 -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 A8AAB21AC0 for ; Mon, 18 Sep 2023 09:14:10 -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 1qiER7-0002Cc-Bz; Mon, 18 Sep 2023 15:37:13 +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 1qiER6-007EZv-Va; Mon, 18 Sep 2023 15:37:12 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1qiER6-002fXm-MT; Mon, 18 Sep 2023 15:37:12 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Sebastian Reichel Cc: patches@opensource.cirrus.com, linux-pm@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH 30/32] power: supply: wm831x_power: Convert to platform remove callback returning void Date: Mon, 18 Sep 2023 15:36:58 +0200 Message-Id: <20230918133700.1254499-31-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=1881; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=bryEUPVoOQQ2wo8mmXbRwX9lGUFBv/XUcwjw14lpV20=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBlCFJyf+duCL1WMNaTufPnU8hVa47EaXCQIy+9p lEkr0uj8GCJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZQhScgAKCRCPgPtYfRL+ Ttr8B/9hgeMueXh3JJrYmdH1tQKYwbbsJYxUSEVxISl9vV5QDmDM3MYKRpWG+kz6wntz5mYxtgn fr7nEJoSf4BL3PKnrx4tu1z2E326/LS/2LOQ5bQPDBKvonHqkT+zy0q8qhTEkg0zhEj+m8GGXbN lfmffx3xIyFxNs1vfeEjzt8YGrM91uXpI46ZLQxR2lJEAQLe5bWfYAyGbnrXPYRclY20yCXfWnx 8D7l0MJssT9HI2D9JrM3lc1VTSTyHs7TYeUP2GD7JgGpFkjqb+S9GEgpTE3Ru1iy3u7EMLqUGTv iyrT5vBzs2qT+nelQtaI4NRORS9SSb9lqMuRT8BHhRVJE5hF 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/wm831x_power.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/power/supply/wm831x_power.c b/drivers/power/supply/wm831x_power.c index 82e31066c746..e49b01ee5f3e 100644 --- a/drivers/power/supply/wm831x_power.c +++ b/drivers/power/supply/wm831x_power.c @@ -694,7 +694,7 @@ static int wm831x_power_probe(struct platform_device *pdev) return ret; } -static int wm831x_power_remove(struct platform_device *pdev) +static void wm831x_power_remove(struct platform_device *pdev) { struct wm831x_power *wm831x_power = platform_get_drvdata(pdev); struct wm831x *wm831x = wm831x_power->wm831x; @@ -722,12 +722,11 @@ static int wm831x_power_remove(struct platform_device *pdev) power_supply_unregister(wm831x_power->battery); power_supply_unregister(wm831x_power->wall); power_supply_unregister(wm831x_power->usb); - return 0; } static struct platform_driver wm831x_power_driver = { .probe = wm831x_power_probe, - .remove = wm831x_power_remove, + .remove_new = wm831x_power_remove, .driver = { .name = "wm831x-power", },