From patchwork Sun Mar 26 14:31:50 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: 667277 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 962A6C74A5B for ; Sun, 26 Mar 2023 14:34:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232410AbjCZOeX (ORCPT ); Sun, 26 Mar 2023 10:34:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33616 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232538AbjCZOdB (ORCPT ); Sun, 26 Mar 2023 10:33:01 -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 1BE341BEC for ; Sun, 26 Mar 2023 07:32:55 -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 1pgRQN-0000Bh-9o; Sun, 26 Mar 2023 16:32:47 +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 1pgRQK-006rfK-IW; Sun, 26 Mar 2023 16:32:44 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pgRQJ-0088Z6-IJ; Sun, 26 Mar 2023 16:32:43 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Jernej Skrabec , Mauro Carvalho Chehab , Chen-Yu Tsai , Samuel Holland Cc: linux-media@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, kernel@pengutronix.de Subject: [PATCH 083/117] media: sun8i_rotate: Convert to platform remove callback returning void Date: Sun, 26 Mar 2023 16:31:50 +0200 Message-Id: <20230326143224.572654-86-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=1881; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=cFM9ryR39dC1zqXzbh3VAz+Gt7Z0sPw+2x4RcLkZw4A=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkIFbpIEMfPBt276qBqk05jpVddS6BlGOY/30xh p1HPwpPUl6JATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZCBW6QAKCRCPgPtYfRL+ Tp+2CACiYaJ6BxRtct1ArxiFzOL90Z9VGsHEYsESMYnrw0FFTf+2xaeLeSrYRYyDRwGQspYX0Bb sy3cMaF2oDaoWgTIRLh9zqmIAviwI1OJxTWGUhKDkm2X0gi0ZmfDWRKSHvOKEgYfq3cpkKdEc3B B3l679YgpcBR9H0n47laYezHYFX7KYg6G2jyPxBfwEnsOttdZxTODoQfBtlvKbTdJkzK7JdswzZ KwL0yUD2qmBOIYlC7QbvhY1qHSzfsbd9fSytfvrgjKmN74lZ5xdwsdaLkOVlmaLW0wwqgIUquXu bJytQOZerdUI031rupAzzyJ/AKA/NAkhPmdoDA11cIxMrBrH 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/sunxi/sun8i-rotate/sun8i_rotate.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/media/platform/sunxi/sun8i-rotate/sun8i_rotate.c b/drivers/media/platform/sunxi/sun8i-rotate/sun8i_rotate.c index fbcca59a0517..bd0c4257bbff 100644 --- a/drivers/media/platform/sunxi/sun8i-rotate/sun8i_rotate.c +++ b/drivers/media/platform/sunxi/sun8i-rotate/sun8i_rotate.c @@ -833,7 +833,7 @@ static int rotate_probe(struct platform_device *pdev) return ret; } -static int rotate_remove(struct platform_device *pdev) +static void rotate_remove(struct platform_device *pdev) { struct rotate_dev *dev = platform_get_drvdata(pdev); @@ -842,8 +842,6 @@ static int rotate_remove(struct platform_device *pdev) v4l2_device_unregister(&dev->v4l2_dev); pm_runtime_force_suspend(&pdev->dev); - - return 0; } static int rotate_runtime_resume(struct device *device) @@ -907,7 +905,7 @@ static const struct dev_pm_ops rotate_pm_ops = { static struct platform_driver rotate_driver = { .probe = rotate_probe, - .remove = rotate_remove, + .remove_new = rotate_remove, .driver = { .name = ROTATE_NAME, .of_match_table = rotate_dt_match,