From patchwork Mon May 8 20:51:57 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: 680101 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 52274C7EE26 for ; Mon, 8 May 2023 20:53:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229532AbjEHUxW (ORCPT ); Mon, 8 May 2023 16:53:22 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45068 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232274AbjEHUxS (ORCPT ); Mon, 8 May 2023 16:53:18 -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 963955BB5 for ; Mon, 8 May 2023 13:53:17 -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 1pw7rA-000390-0z; Mon, 08 May 2023 22:53:16 +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 1pw7r9-0024qY-DL; Mon, 08 May 2023 22:53:15 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pw7r8-002YW0-Ot; Mon, 08 May 2023 22:53:14 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Wolfram Sang Cc: linux-i2c@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH 20/89] i2c: dln2: Convert to platform remove callback returning void Date: Mon, 8 May 2023 22:51:57 +0200 Message-Id: <20230508205306.1474415-21-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=1536; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=QUmFeVnFvwzaSKvm/8Rs2WrC7CiJlYKOcBsVS4aY+EA=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkWWB/0xRGmwXUc9UjRF30eXDO2Ipn74ipxvJ13 hzrq7dRhUeJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZFlgfwAKCRCPgPtYfRL+ TvtyB/4xb9PM0gQ3k5cTGCaBycpX9d57FH0UzBS5+6bkBd62ciAY44+hD7gdEg9e9D3aOq5nr04 TOY82ykDRYQ21UVJwpImRVJu6yZY44M2wA8BycNiB0ioJ+i7Z+tN4mm+OZFqA/xGmtqoE/uM7iU 7j/BMOe9Vy9LL76ViMIA+hp//myRubUo0i0WXok4RZb3UbmYkr/5Hnjg+UlICHTwJNSx8MR7PNc sSVY2jVEWUu9X5te8LDoWP2KvcWIp7wDpq8UMGJF35HzAwCXt+QBT3imNd24ZIv1fRq1j1278EJ OPQZMOTvPnIkGUw31nunYYpG+RjL8oD0NicgRiakQj4vKDl1 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 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 --- drivers/i2c/busses/i2c-dln2.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/i2c/busses/i2c-dln2.c b/drivers/i2c/busses/i2c-dln2.c index 2a2089db71a5..4f02cc2fb567 100644 --- a/drivers/i2c/busses/i2c-dln2.c +++ b/drivers/i2c/busses/i2c-dln2.c @@ -236,20 +236,18 @@ static int dln2_i2c_probe(struct platform_device *pdev) return ret; } -static int dln2_i2c_remove(struct platform_device *pdev) +static void dln2_i2c_remove(struct platform_device *pdev) { struct dln2_i2c *dln2 = platform_get_drvdata(pdev); i2c_del_adapter(&dln2->adapter); dln2_i2c_enable(dln2, false); - - return 0; } static struct platform_driver dln2_i2c_driver = { .driver.name = "dln2-i2c", .probe = dln2_i2c_probe, - .remove = dln2_i2c_remove, + .remove_new = dln2_i2c_remove, }; module_platform_driver(dln2_i2c_driver);