From patchwork Fri Mar 3 17:19:54 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: 13159108 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 B4A5BC7EE37 for ; Fri, 3 Mar 2023 17:21:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231620AbjCCRVM (ORCPT ); Fri, 3 Mar 2023 12:21:12 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39326 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231592AbjCCRVE (ORCPT ); Fri, 3 Mar 2023 12:21:04 -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 33C0947410 for ; Fri, 3 Mar 2023 09:21:03 -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 1pY95Y-0006n0-Ti; Fri, 03 Mar 2023 18:21:00 +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 1pY95X-001blg-QV; Fri, 03 Mar 2023 18:20:59 +0100 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pY95X-001tkQ-46; Fri, 03 Mar 2023 18:20:59 +0100 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Mark Brown Cc: linux-spi@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH 40/87] spi: mpc52xx: Convert to platform remove callback returning void Date: Fri, 3 Mar 2023 18:19:54 +0100 Message-Id: <20230303172041.2103336-41-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=1795; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=D+ZjbD9Sk5/Kt5HJcU5/T4TMs5D4pelyPRUs4knQdJo=; b=owEBbQGS/pANAwAKAcH8FHityuwJAcsmYgBkAiumKff9PRZqa3zl2uU+D66aSxqGcTqNSI4+d qvdNtXIp/iJATMEAAEKAB0WIQR+cioWkBis/z50pAvB/BR4rcrsCQUCZAIrpgAKCRDB/BR4rcrs CUBVB/kB7z1bWsMT+hmYbm56Y6iSswBBkNkKIvbmoYfYjV1TrWaRO08QyhC8miXxQp5ggXrbcJO s7CkK/yh7NEJUwugSdmnV734HB+BCsabf6xozokULLH6LrDo4Lpxm4S2tG6EgnfOAA2GIC5PxIP U+HrRMHzwA/KXYbQixob6KOz99YUg+K+kRHoxqDMHNJ0cfDAMrSsl253iKi28VskaqHaHiL2D76 u6aBg/i9tnP3I6nbiqROQXD+3Q/kYAgOu11Gq/UJpXLpL1ffihC5k6zOqwe95LCRevOsseKPNhh iqmpXkM/B+4Qefxv3f1p9e7lf64m5G6ILxlCvDzA35UftcBC 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-mpc52xx.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/spi/spi-mpc52xx.c b/drivers/spi/spi-mpc52xx.c index 7b64e64c65cf..b652fb196622 100644 --- a/drivers/spi/spi-mpc52xx.c +++ b/drivers/spi/spi-mpc52xx.c @@ -513,7 +513,7 @@ static int mpc52xx_spi_probe(struct platform_device *op) return rc; } -static int mpc52xx_spi_remove(struct platform_device *op) +static void mpc52xx_spi_remove(struct platform_device *op) { struct spi_master *master = spi_master_get(platform_get_drvdata(op)); struct mpc52xx_spi *ms = spi_master_get_devdata(master); @@ -529,8 +529,6 @@ static int mpc52xx_spi_remove(struct platform_device *op) spi_unregister_master(master); iounmap(ms->regs); spi_master_put(master); - - return 0; } static const struct of_device_id mpc52xx_spi_match[] = { @@ -545,6 +543,6 @@ static struct platform_driver mpc52xx_spi_of_driver = { .of_match_table = mpc52xx_spi_match, }, .probe = mpc52xx_spi_probe, - .remove = mpc52xx_spi_remove, + .remove_new = mpc52xx_spi_remove, }; module_platform_driver(mpc52xx_spi_of_driver);