Message ID | 20230918133700.1254499-17-u.kleine-koenig@pengutronix.de (mailing list archive) |
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State | Handled Elsewhere, archived |
Headers | show
Return-Path: <linux-pm-owner@vger.kernel.org> 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 67E95C46CA1 for <linux-pm@archiver.kernel.org>; Mon, 18 Sep 2023 16:34:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229648AbjIRQeV (ORCPT <rfc822;linux-pm@archiver.kernel.org>); Mon, 18 Sep 2023 12:34:21 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58782 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229665AbjIRQeL (ORCPT <rfc822;linux-pm@vger.kernel.org>); Mon, 18 Sep 2023 12:34:11 -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 8889325ACD for <linux-pm@vger.kernel.org>; Mon, 18 Sep 2023 09:15:33 -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 <ukl@pengutronix.de>) id 1qiER4-0001yT-Ci; Mon, 18 Sep 2023 15:37:10 +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 <ukl@pengutronix.de>) id 1qiER3-007EYz-Pb; 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 <ukl@pengutronix.de>) id 1qiER3-002fWs-Gf; Mon, 18 Sep 2023 15:37:09 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= <u.kleine-koenig@pengutronix.de> To: Sebastian Reichel <sre@kernel.org> Cc: linux-pm@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH 16/32] power: supply: lp8788-charger: Convert to platform remove callback returning void Date: Mon, 18 Sep 2023 15:36:44 +0200 Message-Id: <20230918133700.1254499-17-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 Content-Type: text/plain; charset=UTF-8 X-Developer-Signature: v=1; a=openpgp-sha256; l=1736; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=vruG3hHwLNuGO+rhcyQSr1FrN2aCzwC5edWfN4UfJA0=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBlCFJib33hVw1j0LE8NR7CK3SnDOi+72DKg5Zzz pdaavJhg/iJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZQhSYgAKCRCPgPtYfRL+ Tj8dCACSmI4t0sfgPoBYznDxinSngThl3zShC87Cw/C+gnV3NbOLI3luQA+M2+ObVFoE6Gi3CDI hRfN+kfxJoRs8D5/85i76Mq8g+ve6XQqy8ycQj6hDKbvZNuoqZT1B2ii3Z+tozQ7m7rtc4xzCHK YJ9gkRjEWcNqDS5pDWCm5UJ2H/QibAdwMDlUc5FF0Y5BJnYM76GiLSm7WN9UL7BuOU15fzeMTB+ YdeLRKGfWL2nfJ+3DNe7a/WbQgyAWvmRvHZjBnWFYvd0q8fTkup7Qf2mrygwkrgfYyw8c/8sVXP ZtTWtMSQ6QvlENuslok+YqwNMzxXBS4v+K4QhBcqfL1jO1s3 X-Developer-Key: i=u.kleine-koenig@pengutronix.de; a=openpgp; fpr=0D2511F322BFAB1C1580266BE2DCDD9132669BD6 Content-Transfer-Encoding: 8bit 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: <linux-pm.vger.kernel.org> X-Mailing-List: linux-pm@vger.kernel.org |
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power: supply: Convert to platform remove callback returning void
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diff --git a/drivers/power/supply/lp8788-charger.c b/drivers/power/supply/lp8788-charger.c index 755b6a4379b8..2c81be82a41a 100644 --- a/drivers/power/supply/lp8788-charger.c +++ b/drivers/power/supply/lp8788-charger.c @@ -714,20 +714,18 @@ static int lp8788_charger_probe(struct platform_device *pdev) return 0; } -static int lp8788_charger_remove(struct platform_device *pdev) +static void lp8788_charger_remove(struct platform_device *pdev) { struct lp8788_charger *pchg = platform_get_drvdata(pdev); flush_work(&pchg->charger_work); lp8788_irq_unregister(pdev, pchg); lp8788_psy_unregister(pchg); - - return 0; } static struct platform_driver lp8788_charger_driver = { .probe = lp8788_charger_probe, - .remove = lp8788_charger_remove, + .remove_new = lp8788_charger_remove, .driver = { .name = LP8788_DEV_CHARGER, },
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 <u.kleine-koenig@pengutronix.de> --- drivers/power/supply/lp8788-charger.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-)