From patchwork Sun Mar 26 14:30:45 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: 13188161 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 2F391C77B62 for ; Sun, 26 Mar 2023 14:33:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232559AbjCZOdN (ORCPT ); Sun, 26 Mar 2023 10:33:13 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60370 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232420AbjCZOco (ORCPT ); Sun, 26 Mar 2023 10:32:44 -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 32F056594 for ; Sun, 26 Mar 2023 07:32:43 -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-0007qV-Bf; 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 1pgRQ6-006ra2-6n; 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 1pgRQ5-0088Uw-DV; Sun, 26 Mar 2023 16:32:29 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Eugen Hristev , Mauro Carvalho Chehab , Nicolas Ferre , Alexandre Belloni , Claudiu Beznea Cc: linux-media@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kernel@pengutronix.de Subject: [PATCH 018/117] media: atmel-isi: Convert to platform remove callback returning void Date: Sun, 26 Mar 2023 16:30:45 +0200 Message-Id: <20230326143224.572654-21-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=1790; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=OyX9jxWmd9TDLXV+fieICgqwCoyba6GM9yyt29ZPi6E=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkIFac7ad1LpFyPQNJC8wnhSzLOG+CMdj+T1f0l N+BuNEyOW+JATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZCBWnAAKCRCPgPtYfRL+ TjjQB/0SkQ8CZag8EIFbpLjAq8MXbDjOeOBHJszlZaEOrcNCLzeGFS075jL+aHXMYKo2epVAzIC GF+ND/bI8C7icQ40wiUOZRPAEbbNGd7BBTaset14zyfUdAixzh35tS6mEpGy83xoNVUmKiWhcmT NoPGBr3LnYMA3phkXJ39qdSEUAmXXM6GvC1TFaSa0bS2qR1GGaDlyq0DcToofSeo87b1XTXcly1 v2tsYmixr3YuDajsM6T1thN3E9Hu/NHCqWenZBfWI3sgKiuUFF8DDAFjf/t02bZiLNNqp6h3nGZ Is6wAMVOyNWu0vVo+aOvghzuvEgZMi4+VyVdeg7WObI5zShi 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 Acked-by: Nicolas Ferre --- drivers/media/platform/atmel/atmel-isi.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/media/platform/atmel/atmel-isi.c b/drivers/media/platform/atmel/atmel-isi.c index 4d15814e4481..b063f980f9e0 100644 --- a/drivers/media/platform/atmel/atmel-isi.c +++ b/drivers/media/platform/atmel/atmel-isi.c @@ -1317,7 +1317,7 @@ static int atmel_isi_probe(struct platform_device *pdev) return ret; } -static int atmel_isi_remove(struct platform_device *pdev) +static void atmel_isi_remove(struct platform_device *pdev) { struct atmel_isi *isi = platform_get_drvdata(pdev); @@ -1329,8 +1329,6 @@ static int atmel_isi_remove(struct platform_device *pdev) v4l2_async_nf_unregister(&isi->notifier); v4l2_async_nf_cleanup(&isi->notifier); v4l2_device_unregister(&isi->v4l2_dev); - - return 0; } #ifdef CONFIG_PM @@ -1368,7 +1366,7 @@ static struct platform_driver atmel_isi_driver = { .pm = &atmel_isi_dev_pm_ops, }, .probe = atmel_isi_probe, - .remove = atmel_isi_remove, + .remove_new = atmel_isi_remove, }; module_platform_driver(atmel_isi_driver);