From patchwork Sun Mar 26 14:31:20 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: 13188118 X-Patchwork-Delegate: kieran@bingham.xyz 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 5536BC77B70 for ; Sun, 26 Mar 2023 14:32:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232499AbjCZOcz (ORCPT ); Sun, 26 Mar 2023 10:32:55 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60630 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232460AbjCZOcu (ORCPT ); Sun, 26 Mar 2023 10:32:50 -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 3AA4561B1 for ; Sun, 26 Mar 2023 07:32:49 -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 1pgRQH-0008Ot-Jw; Sun, 26 Mar 2023 16:32:41 +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 1pgRQE-006rcy-T6; Sun, 26 Mar 2023 16:32:38 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pgRQC-0088XA-V1; Sun, 26 Mar 2023 16:32:36 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Mikhail Ulyanov , Mauro Carvalho Chehab Cc: linux-media@vger.kernel.org, linux-renesas-soc@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH 053/117] media: rcar_jpu: Convert to platform remove callback returning void Date: Sun, 26 Mar 2023 16:31:20 +0200 Message-Id: <20230326143224.572654-56-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=1771; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=UC83YHmOk2BnQQT107sHqxKNVaZy0TsF7OXm3Ya2aec=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkIFbGZpPNJXshYJpSZIZPl7ON0Mv3wqX3a9uDe 73Tu+VHWP2JATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZCBWxgAKCRCPgPtYfRL+ TtW8B/9hjmx3lhg/gDaDsBClWctoiJQOeg5+Iz+4DsJC6iqi0PXY63AU1esmV4yR2B/6IZFvdqN P1rEu2PWOz2ipOCoXqzW0MhBIM1IaVAYNqI8JehuUXskj0zFgg7svFLmD1mmayi6ObQqtI8/RwR RN1Skl0aW7v9U98MR3ZWhQQLQwQdOjb+5SNKwciXyDPgYmRyP9VPXBmxgtjtqfsfLRKWSiDFvzP ir6oGtgz5JTUwwmmeVk4TFc0AvX5LrJS3AOaFhRJbRfuxl97oeSQJUIrRsXTd7OL8u1xfiB0EYJ xtsFbiTm8ba48Te+3wpDoKJh6Uy4gaH5Elm0o7kISyEqxXVG 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-renesas-soc@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@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 Reviewed-by: Geert Uytterhoeven --- drivers/media/platform/renesas/rcar_jpu.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/media/platform/renesas/rcar_jpu.c b/drivers/media/platform/renesas/rcar_jpu.c index 2f4377cfbb42..e7f604807825 100644 --- a/drivers/media/platform/renesas/rcar_jpu.c +++ b/drivers/media/platform/renesas/rcar_jpu.c @@ -1702,7 +1702,7 @@ static int jpu_probe(struct platform_device *pdev) return ret; } -static int jpu_remove(struct platform_device *pdev) +static void jpu_remove(struct platform_device *pdev) { struct jpu *jpu = platform_get_drvdata(pdev); @@ -1710,8 +1710,6 @@ static int jpu_remove(struct platform_device *pdev) video_unregister_device(&jpu->vfd_encoder); v4l2_m2m_release(jpu->m2m_dev); v4l2_device_unregister(&jpu->v4l2_dev); - - return 0; } #ifdef CONFIG_PM_SLEEP @@ -1746,7 +1744,7 @@ static const struct dev_pm_ops jpu_pm_ops = { static struct platform_driver jpu_driver = { .probe = jpu_probe, - .remove = jpu_remove, + .remove_new = jpu_remove, .driver = { .of_match_table = jpu_dt_ids, .name = DRV_NAME,