From patchwork Fri Mar 3 17:19:18 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: 13159138 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 BA93BC7EE37 for ; Fri, 3 Mar 2023 17:21:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231229AbjCCRVc (ORCPT ); Fri, 3 Mar 2023 12:21:32 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39724 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231628AbjCCRVP (ORCPT ); Fri, 3 Mar 2023 12:21:15 -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 3650D4391F for ; Fri, 3 Mar 2023 09:21:10 -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 1pY95S-0006P1-CX; Fri, 03 Mar 2023 18:20:54 +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 1pY95Q-001bin-FD; Fri, 03 Mar 2023 18:20:52 +0100 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pY95P-001ti5-PX; Fri, 03 Mar 2023 18:20:51 +0100 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Radu Pirea , Mark Brown , Nicolas Ferre , Alexandre Belloni , Claudiu Beznea Cc: linux-spi@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kernel@pengutronix.de Subject: [PATCH 04/87] spi: at91-usart: Convert to platform remove callback returning void Date: Fri, 3 Mar 2023 18:19:18 +0100 Message-Id: <20230303172041.2103336-5-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=1771; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=SGTH7dP1xdrOjceXNC+FsmDr8gaZPzgN2ggj7NJLIyg=; b=owEBbQGS/pANAwAKAcH8FHityuwJAcsmYgBkAisac5mxvotOLoUtJia2rcQeOrDI9GGAI5NoY UDlaMgbpXKJATMEAAEKAB0WIQR+cioWkBis/z50pAvB/BR4rcrsCQUCZAIrGgAKCRDB/BR4rcrs CQDPCACACaDXYziUUldTQvFnJHv2N/lK3otYlI4b7uVeH2GqgV/m0PHCvdlJQhZ9WKesTK/AuG4 MnZrvMy0J5htNRY5CPDcvUQYJBUYzehhX+KARQuGbcd18BP+jEf2to5hVumB3/2b9uRmlH/pyrV vlswhRCeTfAMSq8+3WzvB543/Vb7VneX9+MigJlRQj6LsVOfJt05vQeNJg/uy08gGoWOrOBbruU VaXoMrPwOMIxwpQk1jU7nE5kRNnyEu+/l1tHV/7E/JzvWCe1KQlGnH/y03Kc4KVUgC1IK6so2UF /n9aL9IttItCRb9BH1BYS7ulY1fldb8VHBACB0DptV+6zS01 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: Claudiu Beznea --- drivers/spi/spi-at91-usart.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/spi/spi-at91-usart.c b/drivers/spi/spi-at91-usart.c index fab9d223e24a..4fb3653b5941 100644 --- a/drivers/spi/spi-at91-usart.c +++ b/drivers/spi/spi-at91-usart.c @@ -647,15 +647,13 @@ __maybe_unused static int at91_usart_spi_resume(struct device *dev) return spi_controller_resume(ctrl); } -static int at91_usart_spi_remove(struct platform_device *pdev) +static void at91_usart_spi_remove(struct platform_device *pdev) { struct spi_controller *ctlr = platform_get_drvdata(pdev); struct at91_usart_spi *aus = spi_controller_get_devdata(ctlr); at91_usart_spi_release_dma(ctlr); clk_disable_unprepare(aus->clk); - - return 0; } static const struct dev_pm_ops at91_usart_spi_pm_ops = { @@ -670,7 +668,7 @@ static struct platform_driver at91_usart_spi_driver = { .pm = &at91_usart_spi_pm_ops, }, .probe = at91_usart_spi_probe, - .remove = at91_usart_spi_remove, + .remove_new = at91_usart_spi_remove, }; module_platform_driver(at91_usart_spi_driver);