From patchwork Sun Mar 26 14:31:31 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: 667817 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 4A4F6C761AF for ; Sun, 26 Mar 2023 14:33:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232520AbjCZOdJ (ORCPT ); Sun, 26 Mar 2023 10:33:09 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33402 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232523AbjCZOdE (ORCPT ); Sun, 26 Mar 2023 10:33:04 -0400 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 78E9F61B5 for ; Sun, 26 Mar 2023 07:32:57 -0700 (PDT) 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 1pgRQJ-0008TA-7P; Sun, 26 Mar 2023 16:32:43 +0200 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 1pgRQG-006rdf-Bt; Sun, 26 Mar 2023 16:32:40 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pgRQF-0088Xq-C4; Sun, 26 Mar 2023 16:32:39 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Sylwester Nawrocki , Mauro Carvalho Chehab , Krzysztof Kozlowski Cc: Alim Akhtar , linux-media@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH 064/117] media: fimc-is: Convert to platform remove callback returning void Date: Sun, 26 Mar 2023 16:31:31 +0200 Message-Id: <20230326143224.572654-67-u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230326143224.572654-1-u.kleine-koenig@pengutronix.de> References: <20230326143224.572654-1-u.kleine-koenig@pengutronix.de> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1910; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=YoQhZHlKBWG3AsLKqLOSSczqOknOqCR/k6LMBg0SGGA=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkIFbT3jVoeYt9UEn3O4P1tY69DK+FCDa5okK2Y KCo1VaGbd6JATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZCBW0wAKCRCPgPtYfRL+ TlfEB/0RmiaPfSi7/Id07Mc3czBQtlK/Ppgyf/m2bHrpHFeCvm6YnFfiCH807E42bCxgYJAaqBE zMAIn+Olsji48KVxXrPLUAZik93EOLufRPEesy7zhf60FT44zKoT0OhFqXaNX+ZDBIYV/ou5CRu OrWCW9DJPYBx50iEGp9u3u+e1LYVT//iGJdARFaxLuF7nD+8WqRmH6LuGgg0CvyNhOyAGZdIntZ Rd4rxs4uDopXdAVbEbWLoGF1KkzQ1pzpuHsMwTe21gL9V+06ueWMtprTHzUMiHxFocHCtnXaqJR eucJHGeDhYKlEImTTlyUkKXoaSOZPOQs2SPOVSuijEeCrRF5 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-samsung-soc@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@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/media/platform/samsung/exynos4-is/fimc-is.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/media/platform/samsung/exynos4-is/fimc-is.c b/drivers/media/platform/samsung/exynos4-is/fimc-is.c index a7704ff069d6..530a148fe4d3 100644 --- a/drivers/media/platform/samsung/exynos4-is/fimc-is.c +++ b/drivers/media/platform/samsung/exynos4-is/fimc-is.c @@ -915,7 +915,7 @@ static int fimc_is_suspend(struct device *dev) } #endif /* CONFIG_PM_SLEEP */ -static int fimc_is_remove(struct platform_device *pdev) +static void fimc_is_remove(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct fimc_is *is = dev_get_drvdata(dev); @@ -932,8 +932,6 @@ static int fimc_is_remove(struct platform_device *pdev) fimc_is_debugfs_remove(is); release_firmware(is->fw.f_w); fimc_is_free_cpu_memory(is); - - return 0; } static const struct of_device_id fimc_is_of_match[] = { @@ -950,7 +948,7 @@ static const struct dev_pm_ops fimc_is_pm_ops = { static struct platform_driver fimc_is_driver = { .probe = fimc_is_probe, - .remove = fimc_is_remove, + .remove_new = fimc_is_remove, .driver = { .of_match_table = fimc_is_of_match, .name = FIMC_IS_DRV_NAME,