From patchwork Fri Mar 3 17:19:51 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: 13159159 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 919EFC64EC4 for ; Fri, 3 Mar 2023 17:22:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231665AbjCCRVp (ORCPT ); Fri, 3 Mar 2023 12:21:45 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40036 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231641AbjCCRVZ (ORCPT ); Fri, 3 Mar 2023 12:21:25 -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 7E90F55079 for ; Fri, 3 Mar 2023 09:21:15 -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-0006l0-G4; 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-001blT-8T; 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 1pY95W-001tkD-G8; Fri, 03 Mar 2023 18:20:58 +0100 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Conor Dooley , Daire McNamara , Mark Brown Cc: linux-riscv@lists.infradead.org, linux-spi@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH 37/87] spi: microchip-core: Convert to platform remove callback returning void Date: Fri, 3 Mar 2023 18:19:51 +0100 Message-Id: <20230303172041.2103336-38-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=1907; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=2q5THNKlK4gsquv2lzy7ofOnkVJIgOoYwNhePyYNVus=; b=owEBbQGS/pANAwAKAcH8FHityuwJAcsmYgBkAiuayFi3bYDqqf9iXAc1czAWs59j6npeXLTFz RlGLZ5ws1CJATMEAAEKAB0WIQR+cioWkBis/z50pAvB/BR4rcrsCQUCZAIrmgAKCRDB/BR4rcrs CSK+B/9Wtf/e7biFxUeF+iCjsLA5hkPiJXTXRuRmrpfFBbNugB6pMsNUDLkp3d1Sg835DWSD5L9 Mlw05kpKgDD0Rg3AE9aR7+47N0DM0Xwj+cyb47fUI6YO32iJ4V+436Zvaoh0NrBRd+o5K3Psb8G O9lseeQbr8uNPwQw8kDyFpZXn1xgchISi7VKdwBx1YxoPdZnPHP8y/WIRZSKUQf5Vu6/mK6ycDi M5NmqTu8S6vW3tztURb7lw2DX41tY5kxsVNwyaf5jL841rlkIRr/y4NhCkVjHKjt4KGGelwNTQt CGjsNJGbdD1fJe2DPrJ50HMxewndgT1IdKBbpedyXu+Pyh2G 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 Reviewed-by: Conor Dooley --- drivers/spi/spi-microchip-core.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/spi/spi-microchip-core.c b/drivers/spi/spi-microchip-core.c index aeaa1da88f39..e6cf6ff08061 100644 --- a/drivers/spi/spi-microchip-core.c +++ b/drivers/spi/spi-microchip-core.c @@ -566,7 +566,7 @@ static int mchp_corespi_probe(struct platform_device *pdev) return 0; } -static int mchp_corespi_remove(struct platform_device *pdev) +static void mchp_corespi_remove(struct platform_device *pdev) { struct spi_master *master = platform_get_drvdata(pdev); struct mchp_corespi *spi = spi_master_get_devdata(master); @@ -574,8 +574,6 @@ static int mchp_corespi_remove(struct platform_device *pdev) mchp_corespi_disable_ints(spi); clk_disable_unprepare(spi->clk); mchp_corespi_disable(spi); - - return 0; } #define MICROCHIP_SPI_PM_OPS (NULL) @@ -599,7 +597,7 @@ static struct platform_driver mchp_corespi_driver = { .pm = MICROCHIP_SPI_PM_OPS, .of_match_table = of_match_ptr(mchp_corespi_dt_ids), }, - .remove = mchp_corespi_remove, + .remove_new = mchp_corespi_remove, }; module_platform_driver(mchp_corespi_driver); MODULE_DESCRIPTION("Microchip coreSPI SPI controller driver");