From patchwork Mon Sep 18 13:36:37 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: 13390008 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 CF7E7CD37B0 for ; Mon, 18 Sep 2023 16:17:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230056AbjIRQR7 (ORCPT ); Mon, 18 Sep 2023 12:17:59 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60948 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230070AbjIRQRu (ORCPT ); Mon, 18 Sep 2023 12:17:50 -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 0E6647EC7 for ; Mon, 18 Sep 2023 09:12:35 -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 1qiER2-0001rv-OV; Mon, 18 Sep 2023 15:37:08 +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 1qiER2-007EYX-7x; Mon, 18 Sep 2023 15:37:08 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1qiER1-002fWQ-Uz; Mon, 18 Sep 2023 15:37:07 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Sebastian Reichel Cc: linux-pm@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH 09/32] power: supply: cpcap-charger: Convert to platform remove callback returning void Date: Mon, 18 Sep 2023 15:36:37 +0200 Message-Id: <20230918133700.1254499-10-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=1778; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=kWIuKkcEOY/YuvtSZPWzQr8KtYlwW0QvkJgYDYl6Kqc=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBlCFJaQWpmWbSVxRlKqzPjI9Ff76c8yLetU6T7h H1XLymr0cWJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZQhSWgAKCRCPgPtYfRL+ TuZKCAClm9WnRs1+dbGtK7OxoPg/A8GA2N3C6LIhF9m04Kdex3E+3pi/4Fad4E9fajd15Co7jmI Zy2NoHrStgcwR0DtO8ZHn2JUr3PINziOGeTXQDgbvn2NmGhTqajT8VIlg1Csr/WxHK/2IAZXNqC aV4zHT21mUjPkZrADTxw6gK5aLuPrh7bkEl7Da5SQDtsoV/f2DAuWl9wB5SgkBn0UIF+PtXc2KM 2Z+gF/ZfZGccej/eJPJNKkxLsKpNrzy0t7v4GORdCxiI7LL5s/NI4/xzt6buZJNnJsUFz7SDsxI HnUmtxx5Q7xyXM8plityb9B3UFe8LPHERGX04Q56wKUaovpS 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/cpcap-charger.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/power/supply/cpcap-charger.c b/drivers/power/supply/cpcap-charger.c index be9764541d52..431e951cccf0 100644 --- a/drivers/power/supply/cpcap-charger.c +++ b/drivers/power/supply/cpcap-charger.c @@ -966,11 +966,9 @@ static void cpcap_charger_shutdown(struct platform_device *pdev) cancel_delayed_work_sync(&ddata->detect_work); } -static int cpcap_charger_remove(struct platform_device *pdev) +static void cpcap_charger_remove(struct platform_device *pdev) { cpcap_charger_shutdown(pdev); - - return 0; } static struct platform_driver cpcap_charger_driver = { @@ -980,7 +978,7 @@ static struct platform_driver cpcap_charger_driver = { .of_match_table = of_match_ptr(cpcap_charger_id_table), }, .shutdown = cpcap_charger_shutdown, - .remove = cpcap_charger_remove, + .remove_new = cpcap_charger_remove, }; module_platform_driver(cpcap_charger_driver);