From patchwork Fri Mar 3 17:20:29 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: 13159155 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 B20F2C7EE39 for ; Fri, 3 Mar 2023 17:22:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231673AbjCCRVq (ORCPT ); Fri, 3 Mar 2023 12:21:46 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39992 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231639AbjCCRVY (ORCPT ); Fri, 3 Mar 2023 12:21:24 -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 43B504ECD7 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 1pY95f-00074l-LQ; Fri, 03 Mar 2023 18:21:07 +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 1pY95e-001boQ-Si; Fri, 03 Mar 2023 18:21:06 +0100 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pY95e-001tmd-7m; Fri, 03 Mar 2023 18:21:06 +0100 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Mark Brown , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland Cc: linux-spi@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, kernel@pengutronix.de Subject: [PATCH 75/87] spi: sun6i: Convert to platform remove callback returning void Date: Fri, 3 Mar 2023 18:20:29 +0100 Message-Id: <20230303172041.2103336-76-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=1756; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=L9wdw5mZJD1vsaD4GQEwuVfgNTBs6fWoi0FoLR2rTVQ=; b=owEBbQGS/pANAwAKAcH8FHityuwJAcsmYgBkAiwuITs6LHj/7rTzi+xymG3RU8lwSvLmlKteT 41KREEJwfuJATMEAAEKAB0WIQR+cioWkBis/z50pAvB/BR4rcrsCQUCZAIsLgAKCRDB/BR4rcrs CeCXB/sE2z5MFD566vGSlmJavCVDcZrF68yI0pBjuSqykzU3+Mkky/Sw1K39smK9bXqKPXy0H4N as9HApWNnhaeaguFYcjW1P5xANjs6VUa3Fs4n+85PZmiXRwN9sdfvI18SHX4pwnn3VgcE1j59SI RyF80D+eyk/ijOavSgh2X1D7MfG6OKari//TlmGg+5Ipt/aOJHoz6TXDuHizC+jnDI4qH0aZTEX 84YNldTZogH4gGtXbj7KJT3skxuTMmaZnhOujc20PzfAB3F92z9ROsQDycDZ1g45kEtHeCoHIFB zQ/0awKt9m8Bn2sLyhj/E5+RPDhjMer5OFGyvSYRtgWu6lOg 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: Andre Przywara Acked-by: Jernej Skrabec --- drivers/spi/spi-sun6i.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/spi/spi-sun6i.c b/drivers/spi/spi-sun6i.c index 23ad052528db..43c29afea6bb 100644 --- a/drivers/spi/spi-sun6i.c +++ b/drivers/spi/spi-sun6i.c @@ -683,7 +683,7 @@ static int sun6i_spi_probe(struct platform_device *pdev) return ret; } -static int sun6i_spi_remove(struct platform_device *pdev) +static void sun6i_spi_remove(struct platform_device *pdev) { struct spi_master *master = platform_get_drvdata(pdev); @@ -693,7 +693,6 @@ static int sun6i_spi_remove(struct platform_device *pdev) dma_release_channel(master->dma_tx); if (master->dma_rx) dma_release_channel(master->dma_rx); - return 0; } static const struct of_device_id sun6i_spi_match[] = { @@ -710,7 +709,7 @@ static const struct dev_pm_ops sun6i_spi_pm_ops = { static struct platform_driver sun6i_spi_driver = { .probe = sun6i_spi_probe, - .remove = sun6i_spi_remove, + .remove_new = sun6i_spi_remove, .driver = { .name = "sun6i-spi", .of_match_table = sun6i_spi_match,