From patchwork Sun Mar 26 14:31:04 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: 13188170 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 87EB1C6FD1C for ; Sun, 26 Mar 2023 14:33:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232570AbjCZOdX (ORCPT ); Sun, 26 Mar 2023 10:33:23 -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 S232438AbjCZOcr (ORCPT ); Sun, 26 Mar 2023 10:32:47 -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 9F0017DA1 for ; Sun, 26 Mar 2023 07:32:45 -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 1pgRQC-00083z-Oz; Sun, 26 Mar 2023 16:32:36 +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 1pgRQA-006rbZ-EU; Sun, 26 Mar 2023 16:32:34 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pgRQ9-0088W9-Hw; Sun, 26 Mar 2023 16:32:33 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Mirela Rabulea , Mauro Carvalho Chehab , Shawn Guo , Sascha Hauer Cc: NXP Linux Team , Fabio Estevam , linux-media@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kernel@pengutronix.de Subject: [PATCH 037/117] media: mxc-jpeg: Convert to platform remove callback returning void Date: Sun, 26 Mar 2023 16:31:04 +0200 Message-Id: <20230326143224.572654-40-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=1857; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=he/DS5KxYHpU6tXKKwvBsO17OKmtbjtQ3f2TV/xs1jg=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkIFazsqIWM1CxZL1FRbfxXtH+SlGMFWFNtycYA GLe3UUvhbGJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZCBWswAKCRCPgPtYfRL+ TpcMB/0XNfc6SXV0I+lvFu+DCee6vfUhHM4Kzzv7ABmQJKLaSK8poHKU9AiSJ1qUsV4G9cJL0Z1 ltJylCOGJ6K205hE47qXoM7btvLrkpZhsxAYdEtfUEUnFsMmynqPT2k+08zijk++7ynn12/1qxQ ovQI8egdLEVokRaafJdcdTISKu8mdwxG2Ai0AEfw/gBSH04J+1KPTyFPe+hXGtnHcNUwsMfGCfb FiQUdKe0ZVoR52pvqWvX3vuP0rsCd3PmVyQA+ZGFmu/txTA+DoOanIszyeOSV/BEfFT7WXoXGpK MGHmBehFyqgTKZZ/ko+O2Ie9poX0QeVD7usPVziMYhF/DuAg 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/nxp/imx-jpeg/mxc-jpeg.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c b/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c index f085f14d676a..4dd404d69c4e 100644 --- a/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c +++ b/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c @@ -2622,7 +2622,7 @@ static const struct dev_pm_ops mxc_jpeg_pm_ops = { SET_SYSTEM_SLEEP_PM_OPS(mxc_jpeg_suspend, mxc_jpeg_resume) }; -static int mxc_jpeg_remove(struct platform_device *pdev) +static void mxc_jpeg_remove(struct platform_device *pdev) { unsigned int slot; struct mxc_jpeg_dev *jpeg = platform_get_drvdata(pdev); @@ -2635,15 +2635,13 @@ static int mxc_jpeg_remove(struct platform_device *pdev) v4l2_m2m_release(jpeg->m2m_dev); v4l2_device_unregister(&jpeg->v4l2_dev); mxc_jpeg_detach_pm_domains(jpeg); - - return 0; } MODULE_DEVICE_TABLE(of, mxc_jpeg_match); static struct platform_driver mxc_jpeg_driver = { .probe = mxc_jpeg_probe, - .remove = mxc_jpeg_remove, + .remove_new = mxc_jpeg_remove, .driver = { .name = "mxc-jpeg", .of_match_table = mxc_jpeg_match,