From patchwork Sun Mar 26 14:30:46 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: 13188151 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 DC751C77B61 for ; Sun, 26 Mar 2023 14:33:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232531AbjCZOdA (ORCPT ); Sun, 26 Mar 2023 10:33:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59852 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232389AbjCZOci (ORCPT ); Sun, 26 Mar 2023 10:32:38 -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 88B82769A for ; Sun, 26 Mar 2023 07:32:37 -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 1pgRQ7-0007s9-Ff; Sun, 26 Mar 2023 16:32:31 +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 1pgRQ6-006raN-Qm; 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 1pgRQ5-0088Uz-KW; Sun, 26 Mar 2023 16:32:29 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Maxime Ripard , Mauro Carvalho Chehab Cc: linux-media@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH 019/117] media: cdns-csi2rx: Convert to platform remove callback returning void Date: Sun, 26 Mar 2023 16:30:46 +0200 Message-Id: <20230326143224.572654-22-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=1687; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=xU65GjEXyj0opPkHlCIE1FNxFCt+HXo7iw5YGT1jyYA=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkIFad5W20jJL1Oi5qOiE7anvJtnHEKiCfjSxmd vWfwn9PU1aJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZCBWnQAKCRCPgPtYfRL+ TsENB/wMGri/ANuQ1nmlCcb42kSiTHeIcYjejVlZ6ytt/FslQjhcsE7qFZLmBAAPLne+DfY2Cj4 OoV2HPPqWVGgvwiTtZSYcccyR7McPfF4Wj569PMdVQXs0/FV3kDZ8lNcQ9ZI0CZFo//zx/KZamb VxaSX//rqZ27oGQhWcE3NADwrQLStEIeQ1ZVrx1J/w7qwmEIJUs5sfWx8q4xespvCnvqz4vkcjb qngtXBpAr6cXUwveTffdXBkVR1djrg04Qk4xdBr17kgNTeJyzO2dnjSgDJ0I7nbdMmKCFP5gn77 x9i6YrTrfl2R/1ttriIbUk0/LFnex54QMKado831KUrcSXTO 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/cadence/cdns-csi2rx.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/media/platform/cadence/cdns-csi2rx.c b/drivers/media/platform/cadence/cdns-csi2rx.c index cc3ebb0d96f6..9755d1c8ceb9 100644 --- a/drivers/media/platform/cadence/cdns-csi2rx.c +++ b/drivers/media/platform/cadence/cdns-csi2rx.c @@ -473,14 +473,12 @@ static int csi2rx_probe(struct platform_device *pdev) return ret; } -static int csi2rx_remove(struct platform_device *pdev) +static void csi2rx_remove(struct platform_device *pdev) { struct csi2rx_priv *csi2rx = platform_get_drvdata(pdev); v4l2_async_unregister_subdev(&csi2rx->subdev); kfree(csi2rx); - - return 0; } static const struct of_device_id csi2rx_of_table[] = { @@ -491,7 +489,7 @@ MODULE_DEVICE_TABLE(of, csi2rx_of_table); static struct platform_driver csi2rx_driver = { .probe = csi2rx_probe, - .remove = csi2rx_remove, + .remove_new = csi2rx_remove, .driver = { .name = "cdns-csi2rx",