From patchwork Sun Mar 26 14:31:55 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: 13188221 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 6AF7CC6FD1C for ; Sun, 26 Mar 2023 14:33:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232458AbjCZOd4 (ORCPT ); Sun, 26 Mar 2023 10:33:56 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60602 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232464AbjCZOcy (ORCPT ); Sun, 26 Mar 2023 10:32:54 -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 F08BC7ED3 for ; Sun, 26 Mar 2023 07:32:52 -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 1pgRQO-0000FQ-Qx; Sun, 26 Mar 2023 16:32:48 +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 1pgRQM-006rfr-GB; Sun, 26 Mar 2023 16:32:46 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pgRQK-0088ZT-JA; Sun, 26 Mar 2023 16:32:44 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: "Lad, Prabhakar" , Mauro Carvalho Chehab Cc: linux-media@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH 088/117] media: vpif_display: Convert to platform remove callback returning void Date: Sun, 26 Mar 2023 16:31:55 +0200 Message-Id: <20230326143224.572654-91-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=1772; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=5z/UCYi7pnVTwBpUoBR38shL1sqEGMgf8UyTOszeQ1M=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkIFbvLC73IX76nybiayNjhMhJgp8x2vYKfBY2F E6R2JjpVYyJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZCBW7wAKCRCPgPtYfRL+ Tuh0B/sF7oL6VX9Pz5jq/uTqN8GHNFdUIv/fkfKN7Iooq9sNXYLvtGJ/18zjZDEhZsQWXEheKxJ E+c9hKjm/COZMS2VC5nsxE7A6tnIcuQPKZCRvwoO7k23QZR3Vjvs3NFFc+JduoUHwwIl7+LDjyD eEmKpcA5BmwNoYJoGcnrbv2L5tdpfXc8Y5k2/HN53Tur9kyXRd4oM9EGTP+rREcBlGXA9xFfR49 WPYGxdxWJTBMbXqyh59afAWH8hGVPbeYLQ2Qs7/S2yxc7q29YBBEJsOmjPSdW+KY1iyGZ5JZhb0 NEj915v6Rxm+Heo8LY/+6UorvXf9Nqg4cC3KL/4Wj5LQfN8P 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/ti/davinci/vpif_display.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/media/platform/ti/davinci/vpif_display.c b/drivers/media/platform/ti/davinci/vpif_display.c index b2df81603f62..f8ec2991c667 100644 --- a/drivers/media/platform/ti/davinci/vpif_display.c +++ b/drivers/media/platform/ti/davinci/vpif_display.c @@ -1305,7 +1305,7 @@ static __init int vpif_probe(struct platform_device *pdev) /* * vpif_remove: It un-register channels from V4L2 driver */ -static int vpif_remove(struct platform_device *device) +static void vpif_remove(struct platform_device *device) { struct channel_obj *ch; int i; @@ -1321,8 +1321,6 @@ static int vpif_remove(struct platform_device *device) video_unregister_device(&ch->video_dev); } free_vpif_objs(); - - return 0; } #ifdef CONFIG_PM_SLEEP @@ -1399,7 +1397,7 @@ static __refdata struct platform_driver vpif_driver = { .pm = &vpif_pm_ops, }, .probe = vpif_probe, - .remove = vpif_remove, + .remove_new = vpif_remove, }; module_platform_driver(vpif_driver);