From patchwork Mon May 8 20:52:47 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: 1778639 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=2620:137:e000::1:20; helo=out1.vger.email; envelope-from=linux-i2c-owner@vger.kernel.org; receiver=) Received: from out1.vger.email (out1.vger.email [IPv6:2620:137:e000::1:20]) by legolas.ozlabs.org (Postfix) with ESMTP id 4QFYRr5X4Fz1ymw for ; Tue, 9 May 2023 06:54:00 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233659AbjEHUx7 (ORCPT ); Mon, 8 May 2023 16:53:59 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45806 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233490AbjEHUxn (ORCPT ); Mon, 8 May 2023 16:53:43 -0400 Received: from metis.ext.pengutronix.de (metis.ext.pengutronix.de [IPv6:2001:67c:670:201:290:27ff:fe1d:cc33]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BF0467ECA for ; Mon, 8 May 2023 13:53:34 -0700 (PDT) Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1pw7rO-0003y4-Un; Mon, 08 May 2023 22:53:30 +0200 Received: from [2a0a:edc0:0:900:1d::77] (helo=ptz.office.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtp (Exim 4.94.2) (envelope-from ) id 1pw7rO-0024ue-8P; Mon, 08 May 2023 22:53:30 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pw7rN-002YZE-Ck; Mon, 08 May 2023 22:53:29 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Pierre-Yves MORDRET , Alain Volmat , Maxime Coquelin , Alexandre Torgue , Wolfram Sang Cc: linux-i2c@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, kernel@pengutronix.de Subject: [PATCH 70/89] i2c: stm32f7: Convert to platform remove callback returning void Date: Mon, 8 May 2023 22:52:47 +0200 Message-Id: <20230508205306.1474415-71-u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230508205306.1474415-1-u.kleine-koenig@pengutronix.de> References: <20230508205306.1474415-1-u.kleine-koenig@pengutronix.de> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1795; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=eQvd9WsH9i08sYN0qPrLQXf+L5YYyHoKbzWIJuiTnrU=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkWWEFVCbbVDr7BY0KGmVwYpbWm6t5Zo6+u1Fs7 4qhIl+aby+JATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZFlhBQAKCRCPgPtYfRL+ TkFBCACVqkNNaHxapodNcJ981Oze3RuPzzzpYyo19iwm7REZfHq5JPL2g//mRVlaNDL+NwpzVqH 8FcMQ+U2pKyvJeOwAnlrLZhf+IjXLwr5VFgopopTVvm7RwcGheG8+lnfACrjNJPnWztJR4pMVDo WCqgBMaQkHeXTQqGkw3IAggJhLt2/EMHFFPsYkh3NwWErUnlWrhlxQbN5Y3fslUVHhAC+J7bUAT lb8jTKzagUH60zKG6dv8jw05/TkSPMWEkUB9lu+qeDSCjt1HpAedEnChS9K/Ex15aRyCQdHAXzS la1iJYLFhMSQApQ5OkQlTYmX5CHP+6CU5ca41+gKvSibyYEC 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.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-i2c@vger.kernel.org X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_MED, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-i2c@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 (mostly) ignored 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. Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König Acked-by: Alain Volmat --- drivers/i2c/busses/i2c-stm32f7.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/i2c/busses/i2c-stm32f7.c b/drivers/i2c/busses/i2c-stm32f7.c index d1c59d83a65b..e897d9101434 100644 --- a/drivers/i2c/busses/i2c-stm32f7.c +++ b/drivers/i2c/busses/i2c-stm32f7.c @@ -2309,7 +2309,7 @@ static int stm32f7_i2c_probe(struct platform_device *pdev) return ret; } -static int stm32f7_i2c_remove(struct platform_device *pdev) +static void stm32f7_i2c_remove(struct platform_device *pdev) { struct stm32f7_i2c_dev *i2c_dev = platform_get_drvdata(pdev); @@ -2341,8 +2341,6 @@ static int stm32f7_i2c_remove(struct platform_device *pdev) stm32f7_i2c_write_fm_plus_bits(i2c_dev, false); clk_disable_unprepare(i2c_dev->clk); - - return 0; } static int __maybe_unused stm32f7_i2c_runtime_suspend(struct device *dev) @@ -2486,7 +2484,7 @@ static struct platform_driver stm32f7_i2c_driver = { .pm = &stm32f7_i2c_pm_ops, }, .probe = stm32f7_i2c_probe, - .remove = stm32f7_i2c_remove, + .remove_new = stm32f7_i2c_remove, }; module_platform_driver(stm32f7_i2c_driver);