From patchwork Sun Mar 26 14:30:47 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: 13188153 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 43633C74A5B for ; Sun, 26 Mar 2023 14:33:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232540AbjCZOdC (ORCPT ); Sun, 26 Mar 2023 10:33:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60088 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231258AbjCZOcj (ORCPT ); Sun, 26 Mar 2023 10:32:39 -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 062D072B2 for ; Sun, 26 Mar 2023 07:32:39 -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 1pgRQ7-0007rm-7y; 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 1pgRQ6-006raE-KU; 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 1pgRQ5-0088V5-S7; 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 020/117] media: cdns-csi2tx: Convert to platform remove callback returning void Date: Sun, 26 Mar 2023 16:30:47 +0200 Message-Id: <20230326143224.572654-23-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=1564; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=k/sHZTjAcZMHnFf3yzbCfXXuYcTZH+CQ20zqq6k9664=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkIFafMWnkh7dHaSJ4lFMiVvgObS7TUCs0a3lCV AgOF1maK2CJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZCBWnwAKCRCPgPtYfRL+ TsT7CACsqw2ZMhuTh1s0U+hukgIiPHtZ+/Tq0fmifdNaname/s+wRJOt/yY49TycK6YcpwDZies NYqwLdaafzP41erAgi4kpBRTg++QYKoxlfWgCprzODeTpVbRO/g7owRs7OZz5WytQ5lduW3BNPl t90jnxhrJ1huoJ7zZm9S+h6YPu7OKfuRph1id+jTW/lpY95w9FSVFXVi6Ar9z0Clfwnr5Vbca1Y lBKVj/HT5i8JqPfRtbZldSgifCgaJAjW/Pi2BMIRAyhH2YFFFTF0hSFG5hHt8GRCVZfJyqC+com yM2vUZBDPQUmAxsoVq/+ihXHxLaBBwMMarQGbQOycZjrz4lR 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-csi2tx.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/media/platform/cadence/cdns-csi2tx.c b/drivers/media/platform/cadence/cdns-csi2tx.c index 58e405b69f67..1e0400b7803e 100644 --- a/drivers/media/platform/cadence/cdns-csi2tx.c +++ b/drivers/media/platform/cadence/cdns-csi2tx.c @@ -635,19 +635,17 @@ static int csi2tx_probe(struct platform_device *pdev) return ret; } -static int csi2tx_remove(struct platform_device *pdev) +static void csi2tx_remove(struct platform_device *pdev) { struct csi2tx_priv *csi2tx = platform_get_drvdata(pdev); v4l2_async_unregister_subdev(&csi2tx->subdev); kfree(csi2tx); - - return 0; } static struct platform_driver csi2tx_driver = { .probe = csi2tx_probe, - .remove = csi2tx_remove, + .remove_new = csi2tx_remove, .driver = { .name = "cdns-csi2tx",