From patchwork Mon Sep 18 13:36:59 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: 13390077 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 7ADEAC46CA1 for ; Mon, 18 Sep 2023 16:36:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230206AbjIRQgF (ORCPT ); Mon, 18 Sep 2023 12:36:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52534 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230249AbjIRQfk (ORCPT ); Mon, 18 Sep 2023 12:35:40 -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 C706D21EAD for ; Mon, 18 Sep 2023 09:14:50 -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 1qiER7-0002Ct-La; 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 1qiER7-007EZz-8U; Mon, 18 Sep 2023 15:37:13 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1qiER6-002fXq-VN; 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 31/32] power: supply: wm8350_power: Convert to platform remove callback returning void Date: Mon, 18 Sep 2023 15:36:59 +0200 Message-Id: <20230918133700.1254499-32-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=1844; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=gP2Nc0rlnS5gMqo9RvYkINwXnyPtzZQPMBd4Yz6KJjE=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBlCFJ0rUOrLB5uvUHNwcWb7RXz/LT2wWIQ4CB9i NhBJwSh+2qJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZQhSdAAKCRCPgPtYfRL+ TsEjCACFPG+pcLnpZtSeaFFd+macuS+92b1nxNzfKuQUhfqkRB6RPnJ33k+gKst9iy5DZAmlhxK SQKkw//aFHzpGXRN4kC68FVmW7cOdQ6ZjtMlXjcMymXLtyvN8UzB7igwWXjIBvTJIjgt95dkMBN OFz2tHYNok+o/dscUfsMlg2UpjbvEjFNZ51SAWQlM39TUBBPaGITlM4EYIIfcwrkU6NewhHizNF ZD6U8E6ZWmK4bx7HL4EO+70M6KY/NExdcU0USHwXAR5NqQyMme6Qsx8M0oYM/MRBFTs4BLQZD1a b9ZEwq+GSoHJgZQcgzScLY2Y5v3p24gHkfC7oR596ztcPa9M 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/wm8350_power.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/power/supply/wm8350_power.c b/drivers/power/supply/wm8350_power.c index f2786761299c..f23b4f5343bc 100644 --- a/drivers/power/supply/wm8350_power.c +++ b/drivers/power/supply/wm8350_power.c @@ -579,7 +579,7 @@ static int wm8350_power_probe(struct platform_device *pdev) return ret; } -static int wm8350_power_remove(struct platform_device *pdev) +static void wm8350_power_remove(struct platform_device *pdev) { struct wm8350 *wm8350 = platform_get_drvdata(pdev); struct wm8350_power *power = &wm8350->power; @@ -589,12 +589,11 @@ static int wm8350_power_remove(struct platform_device *pdev) power_supply_unregister(power->battery); power_supply_unregister(power->ac); power_supply_unregister(power->usb); - return 0; } static struct platform_driver wm8350_power_driver = { .probe = wm8350_power_probe, - .remove = wm8350_power_remove, + .remove_new = wm8350_power_remove, .driver = { .name = "wm8350-power", },