From patchwork Sun Mar 26 14:31:45 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: 667742 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 4253FC6FD1C for ; Sun, 26 Mar 2023 14:34:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232605AbjCZOej (ORCPT ); Sun, 26 Mar 2023 10:34:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60432 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232564AbjCZOdL (ORCPT ); Sun, 26 Mar 2023 10:33:11 -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 5AD977AB1 for ; Sun, 26 Mar 2023 07:33:00 -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-00009B-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 1pgRQJ-006ren-Ki; Sun, 26 Mar 2023 16:32:43 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pgRQI-0088Yp-Dz; Sun, 26 Mar 2023 16:32:42 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Maxime Ripard , Mauro Carvalho Chehab , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland Cc: linux-media@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, kernel@pengutronix.de Subject: [PATCH 078/117] media: sun4i_csi: Convert to platform remove callback returning void Date: Sun, 26 Mar 2023 16:31:45 +0200 Message-Id: <20230326143224.572654-81-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=1908; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=92f+/LQb/H6f1ORxRx6eRZYglN/JIjU1cdoQA/Fu7uU=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkIFbjj4OPXL2XVpzi/Nj0dmAgJvKqDyZkMFnTr hw1BsChwWiJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZCBW4wAKCRCPgPtYfRL+ Tk/uB/95Csm+2fLfFB/qcZ7rs82AZiz/VIPmV4wv7JtBRl7913WpkszO6OjoTe12jmTt9DuUl9M Me9tqYJqwqLprsXxZstU4wdf8765sPnMUQMNugx5QXcmh0rJTAKqzWhlJANpr8vRQjwYMnNlMwA dFJoSN+v7RwJxkinGUDtXKUpc6u+fVY4wIv430fKQJH7Z7lctNC/hirIN13EEO3jfViZwHDqKpL UOr0Wd1TaGqY0TcWSqLK9+lRwAAyGBcFXkKaCnAPgdlq3KIqB6Tg9OI5Mp3+rnQk3nJ32Yn5G2P ykbYtKeAdZrkAGrnm/rT/AOC/i/Z4o3rAw5Hi4iuTu+4vNAQ 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/sun4i-csi/sun4i_csi.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/media/platform/sunxi/sun4i-csi/sun4i_csi.c b/drivers/media/platform/sunxi/sun4i-csi/sun4i_csi.c index 86c5235a0c7a..d6e7d1b36083 100644 --- a/drivers/media/platform/sunxi/sun4i-csi/sun4i_csi.c +++ b/drivers/media/platform/sunxi/sun4i-csi/sun4i_csi.c @@ -260,7 +260,7 @@ static int sun4i_csi_probe(struct platform_device *pdev) return ret; } -static int sun4i_csi_remove(struct platform_device *pdev) +static void sun4i_csi_remove(struct platform_device *pdev) { struct sun4i_csi *csi = platform_get_drvdata(pdev); @@ -271,8 +271,6 @@ static int sun4i_csi_remove(struct platform_device *pdev) media_device_unregister(&csi->mdev); sun4i_csi_dma_unregister(csi); media_device_cleanup(&csi->mdev); - - return 0; } static const struct sun4i_csi_traits sun4i_a10_csi1_traits = { @@ -330,7 +328,7 @@ static const struct dev_pm_ops sun4i_csi_pm_ops = { static struct platform_driver sun4i_csi_driver = { .probe = sun4i_csi_probe, - .remove = sun4i_csi_remove, + .remove_new = sun4i_csi_remove, .driver = { .name = "sun4i-csi", .of_match_table = sun4i_csi_of_match,