From patchwork Sun Mar 26 14:30:44 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: 13188169 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 A1E62C761AF for ; Sun, 26 Mar 2023 14:33:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232565AbjCZOdW (ORCPT ); Sun, 26 Mar 2023 10:33:22 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60348 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232434AbjCZOcq (ORCPT ); Sun, 26 Mar 2023 10:32:46 -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 178067D94 for ; Sun, 26 Mar 2023 07:32:45 -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 1pgRQA-0007qX-KM; Sun, 26 Mar 2023 16:32:34 +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 1pgRQ6-006ra3-7V; Sun, 26 Mar 2023 16:32:30 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pgRQ5-0088Ut-7N; Sun, 26 Mar 2023 16:32:29 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Eddie James , Mauro Carvalho Chehab , Joel Stanley Cc: Andrew Jeffery , linux-media@vger.kernel.org, openbmc@lists.ozlabs.org, linux-arm-kernel@lists.infradead.org, linux-aspeed@lists.ozlabs.org, kernel@pengutronix.de Subject: [PATCH 017/117] media: aspeed-video: Convert to platform remove callback returning void Date: Sun, 26 Mar 2023 16:30:44 +0200 Message-Id: <20230326143224.572654-20-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=1876; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=KutP+Y7ggmovOkH+OeVwSMF2KZqCIcZODewIzhblqao=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkIFab2ufSfDado4VWw1jF8GYECshQZd+1a/zYg l4extXNT1OJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZCBWmwAKCRCPgPtYfRL+ ToulCACHe8Da4FGG6yr9pXEmGcObel9MPRf1adnzUFyvkzR6IwLKPCgsOK11dGO2PnKVGe8zk61 FO+ohs1dSvLOM3MYJK1qZGCOn1fqXYBVeEkFGBeZBNeQkjVIvGi26NHIvqWuT+2nAQf1BinQzVy afjG1+u8rDvbDemgkbYniZrmNr/bYzmAgC7zcDX6emS/Qd0yyjid3+JIFXrtJaTnwSqAG7tKssB aC7AZ6XbOMypiGzO1y1rnJm2svskBsEECXiCm3gKh842J+BBctxlRgYJHQRHpRMT5zl8NBFd/Fn 3TttGRDOLyBGmP8RZOA3TbM0P+DU++97B6D/AM2ySH1Gh2pE 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-media@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@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/aspeed/aspeed-video.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/media/platform/aspeed/aspeed-video.c b/drivers/media/platform/aspeed/aspeed-video.c index 794d4dc3a654..374eb7781936 100644 --- a/drivers/media/platform/aspeed/aspeed-video.c +++ b/drivers/media/platform/aspeed/aspeed-video.c @@ -2206,7 +2206,7 @@ static int aspeed_video_probe(struct platform_device *pdev) return 0; } -static int aspeed_video_remove(struct platform_device *pdev) +static void aspeed_video_remove(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct v4l2_device *v4l2_dev = dev_get_drvdata(dev); @@ -2228,8 +2228,6 @@ static int aspeed_video_remove(struct platform_device *pdev) aspeed_video_free_buf(video, &video->jpeg); of_reserved_mem_device_release(dev); - - return 0; } static struct platform_driver aspeed_video_driver = { @@ -2238,7 +2236,7 @@ static struct platform_driver aspeed_video_driver = { .of_match_table = aspeed_video_of_match, }, .probe = aspeed_video_probe, - .remove = aspeed_video_remove, + .remove_new = aspeed_video_remove, }; module_platform_driver(aspeed_video_driver);