From patchwork Fri Mar 3 17:20:02 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: 658712 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 EEAB5C7EE32 for ; Fri, 3 Mar 2023 17:21:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231363AbjCCRVQ (ORCPT ); Fri, 3 Mar 2023 12:21:16 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39378 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231555AbjCCRVF (ORCPT ); Fri, 3 Mar 2023 12:21:05 -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 99CD6474FF for ; Fri, 3 Mar 2023 09:21:04 -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 1pY95a-0006op-Bb; Fri, 03 Mar 2023 18:21:02 +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 1pY95Z-001bmK-DF; Fri, 03 Mar 2023 18:21:01 +0100 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pY95Y-001tku-Ln; Fri, 03 Mar 2023 18:21:00 +0100 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Mark Brown Cc: linux-spi@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH 48/87] spi: oc-tiny: Convert to platform remove callback returning void Date: Fri, 3 Mar 2023 18:20:02 +0100 Message-Id: <20230303172041.2103336-49-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=1608; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=V7Rr0zmWNSIXuku8Ci0hf+TbY1OYIV9shURn2FEGei4=; b=owEBbQGS/pANAwAKAcH8FHityuwJAcsmYgBkAivFNRDzpW4VeH3MJ6bEcHEulLOPHsPHoP5i6 PsFSX9z2AWJATMEAAEKAB0WIQR+cioWkBis/z50pAvB/BR4rcrsCQUCZAIrxQAKCRDB/BR4rcrs CWEiB/sH5Xri5G1knxpL57loBvCQK0aZiPD1JOQ1X+aPtucQFscmg94Rs1IP5i7uS78fQGv2bXq rz/WVGJrtxK/3dbHMFR3B2LMQdHGdEICzAWElqp8h1se19xz9hvylx32nAcijygBoeD2zVBUWWG FHwnxl/kNZJnJvfYB5ROkjdMTBWXZqvIYcZv8aGg3KW4fWWfaWCGqoBTeGdrXwQPVx59RdY3k/q Ho2Ai51ih0CAvQyCsTIhN5/OXxB1+t7xToIk8JsjCc7LLc9+qyqgjaHhN7dfMAdjiyC0/rs44Gm bGQoxaqrf5SH4N7mSXILxm8u4Dn9m65OXHX+GWF8W+G42xR4 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-oc-tiny.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/spi/spi-oc-tiny.c b/drivers/spi/spi-oc-tiny.c index 38c14c4e4e21..3af499838e84 100644 --- a/drivers/spi/spi-oc-tiny.c +++ b/drivers/spi/spi-oc-tiny.c @@ -271,14 +271,13 @@ static int tiny_spi_probe(struct platform_device *pdev) return err; } -static int tiny_spi_remove(struct platform_device *pdev) +static void tiny_spi_remove(struct platform_device *pdev) { struct tiny_spi *hw = platform_get_drvdata(pdev); struct spi_master *master = hw->bitbang.master; spi_bitbang_stop(&hw->bitbang); spi_master_put(master); - return 0; } #ifdef CONFIG_OF @@ -291,7 +290,7 @@ MODULE_DEVICE_TABLE(of, tiny_spi_match); static struct platform_driver tiny_spi_driver = { .probe = tiny_spi_probe, - .remove = tiny_spi_remove, + .remove_new = tiny_spi_remove, .driver = { .name = DRV_NAME, .pm = NULL,