From patchwork Sun Mar 26 14:31:06 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: 667302 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 39EC4C74A5B for ; Sun, 26 Mar 2023 14:33:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231834AbjCZOda (ORCPT ); Sun, 26 Mar 2023 10:33:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60384 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232429AbjCZOcr (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 EECF77DA9 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 1pgRQD-00087U-ID; Sun, 26 Mar 2023 16:32:37 +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 1pgRQB-006rbp-6w; Sun, 26 Mar 2023 16:32:35 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pgRQ9-0088WH-Vn; Sun, 26 Mar 2023 16:32:33 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Philipp Zabel , Mauro Carvalho Chehab , Shawn Guo , Sascha Hauer Cc: Fabio Estevam , NXP Linux Team , linux-media@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kernel@pengutronix.de Subject: [PATCH 039/117] media: imx-pxp: Convert to platform remove callback returning void Date: Sun, 26 Mar 2023 16:31:06 +0200 Message-Id: <20230326143224.572654-42-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=1769; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=mVUQPhy61vCRwq0BXxL+2o+PGJnktd/oNm3ktQgT7jo=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkIFa1voPinyhetmZyrYhk5xNO3LTQw0NaMqqMc MvXsoUY2ziJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZCBWtQAKCRCPgPtYfRL+ TlABB/4za/6ou3sGTJIz2Ml7ZJC6i7yqbn2lFL3XaxUEuPBy96zgCfOFHc4SgR92m+XpcxCRpK3 RjTtGO5wCYUtyf2/1Gr/8q2xGKwiFEMknITYuOO0xyPskA4bOtSvXxNNyuKb5JgU5BWb6UDfQ0a v41wSUhJkmgFFHreg1+LZq3dq77L0ygdCCcrZiIh4AWmcvT5HhjJ45YYwnasMihmPOXuc5lGNyd zyGH2eE/Udb9UHoQwiMgqo1gkZfqH0jiIoPwiiOjIVUFGT8m+WbpXQbdgLpzGa7bZRViRehs37v Qe+Eyes9NLoFwN2Llzzp4eIqhspTU0p+DQRbAzYLaFLv3fsV 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-pxp.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/media/platform/nxp/imx-pxp.c b/drivers/media/platform/nxp/imx-pxp.c index fde3c36e5e1d..90f319857c23 100644 --- a/drivers/media/platform/nxp/imx-pxp.c +++ b/drivers/media/platform/nxp/imx-pxp.c @@ -1904,7 +1904,7 @@ static int pxp_probe(struct platform_device *pdev) return ret; } -static int pxp_remove(struct platform_device *pdev) +static void pxp_remove(struct platform_device *pdev) { struct pxp_dev *dev = platform_get_drvdata(pdev); @@ -1922,8 +1922,6 @@ static int pxp_remove(struct platform_device *pdev) video_unregister_device(&dev->vfd); v4l2_m2m_release(dev->m2m_dev); v4l2_device_unregister(&dev->v4l2_dev); - - return 0; } static const struct pxp_pdata pxp_imx6ull_pdata = { @@ -1943,7 +1941,7 @@ MODULE_DEVICE_TABLE(of, pxp_dt_ids); static struct platform_driver pxp_driver = { .probe = pxp_probe, - .remove = pxp_remove, + .remove_new = pxp_remove, .driver = { .name = MEM2MEM_NAME, .of_match_table = pxp_dt_ids,