From patchwork Fri Mar 3 17:19:34 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: 13159090 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 A95D6C7EE2F for ; Fri, 3 Mar 2023 17:21:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231585AbjCCRVD (ORCPT ); Fri, 3 Mar 2023 12:21:03 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39154 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231310AbjCCRU7 (ORCPT ); Fri, 3 Mar 2023 12:20:59 -0500 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 0CFDE4392E for ; Fri, 3 Mar 2023 09:20:58 -0800 (PST) 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 1pY95U-0006Vt-ES; Fri, 03 Mar 2023 18:20:56 +0100 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 1pY95T-001bk3-Qs; Fri, 03 Mar 2023 18:20:55 +0100 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pY95S-001tj6-U1; Fri, 03 Mar 2023 18:20:54 +0100 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Mark Brown Cc: linux-spi@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH 20/87] spi: dln2: Convert to platform remove callback returning void Date: Fri, 3 Mar 2023 18:19:34 +0100 Message-Id: <20230303172041.2103336-21-u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.39.1 In-Reply-To: <20230303172041.2103336-1-u.kleine-koenig@pengutronix.de> References: <20230303172041.2103336-1-u.kleine-koenig@pengutronix.de> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1715; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=o4dbhtYbf6EvlKOld+Vr41XaPZ3K2kF/xDi+oYZovAs=; b=owEBbQGS/pANAwAKAcH8FHityuwJAcsmYgBkAitWIPPHrl8S2U7TND74sZA5PGMzmi+NmKz9d xjNzLxzfk6JATMEAAEKAB0WIQR+cioWkBis/z50pAvB/BR4rcrsCQUCZAIrVgAKCRDB/BR4rcrs CY39CACIG/dVGTNTjI33OG2Gu9pTHQgghOfCfUXn/HEsYnrtk4qi2uRsZZiexZzCPB0tU9Yt5QJ vATFufYCVgNvB7woEWc41LEFLk9VZHfRb0as3dQ+ugW1f875xPkRopLX0ZUTMxx/9NvBtXMSmvn zGtmqNozPxUovk3MJrWDIX99rBf+JKHs4R77xKDhWZV1Y7aGtLL2NjZO4SlGaI5r0iuXitg9kuO qPok8AQx0R6W8AgkT+w8/gZIJ+6hXufVI79vArQ062Grlw2BAoXYrBhAkjDrJF5mF3PH0IkO+ik MwLGBUiJlyUSEe5jdDDQkw9O+t+ECgRsdXl2w4LHA4b+5X8f 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-spi@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-spi@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/spi/spi-dln2.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/spi/spi-dln2.c b/drivers/spi/spi-dln2.c index 0a1fb2bc9e54..821bfc6b0dd6 100644 --- a/drivers/spi/spi-dln2.c +++ b/drivers/spi/spi-dln2.c @@ -781,7 +781,7 @@ static int dln2_spi_probe(struct platform_device *pdev) return ret; } -static int dln2_spi_remove(struct platform_device *pdev) +static void dln2_spi_remove(struct platform_device *pdev) { struct spi_master *master = platform_get_drvdata(pdev); struct dln2_spi *dln2 = spi_master_get_devdata(master); @@ -790,8 +790,6 @@ static int dln2_spi_remove(struct platform_device *pdev) if (dln2_spi_enable(dln2, false) < 0) dev_err(&pdev->dev, "Failed to disable SPI module\n"); - - return 0; } #ifdef CONFIG_PM_SLEEP @@ -873,7 +871,7 @@ static struct platform_driver spi_dln2_driver = { .pm = &dln2_spi_pm, }, .probe = dln2_spi_probe, - .remove = dln2_spi_remove, + .remove_new = dln2_spi_remove, }; module_platform_driver(spi_dln2_driver);