From patchwork Sun Mar 26 14:30:56 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: 13188163 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 3258AC6FD1C for ; Sun, 26 Mar 2023 14:33:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232420AbjCZOdP (ORCPT ); Sun, 26 Mar 2023 10:33:15 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60334 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232422AbjCZOco (ORCPT ); Sun, 26 Mar 2023 10:32:44 -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 D3EDC7DB0 for ; Sun, 26 Mar 2023 07:32:43 -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 1pgRQ9-0007ua-Sq; Sun, 26 Mar 2023 16:32:33 +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 1pgRQ8-006rb0-Eg; Sun, 26 Mar 2023 16:32:32 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pgRQ7-0088Vf-QB; Sun, 26 Mar 2023 16:32:31 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Tiffany Lin , Andrew-CT Chen , Yunfei Dong , Mauro Carvalho Chehab , Matthias Brugger Cc: AngeloGioacchino Del Regno , linux-media@vger.kernel.org, kernel@pengutronix.de, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org Subject: [PATCH 029/117] media: mtk_vcodec_dec_drv: Convert to platform remove callback returning void Date: Sun, 26 Mar 2023 16:30:56 +0200 Message-Id: <20230326143224.572654-32-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=1894; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=O6z10/slUyNl2TD3diJ/WCSRZtqpk39pLLrKXrHKrTk=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkIFaptPdsjpR2hYatPNI+aLWKfTwo2bR59OOa/ LPnZBIQs1aJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZCBWqQAKCRCPgPtYfRL+ TntbB/0VncSjZPipPwEbM/MkOFDUQEJYwx+uHEot5G61sCpHx1UYJ/7ABORc9e/cM1Eabk724kb 4mGGmjzvCq2fqKy7T4c/GNADCUYQHXz4IvL6wPblz20n+aLcBlFwHy+n9Vf3PQ+bgwmel0OMchB lXXoSynM1iWWiLQEKeJFeolcE9xK0ZIlSCA1L2BuopuervaxVyEJzUeB3sgbCQ8voZ6cuWh2huq mOR8XGkJFulQAQlonFDvGod6TydUJsWAV/osMcOfEfaH6tm0l7cxQiUhEU2DK83bmx02VJ6Ehlv JqqAGF6dB9dEnD88yGwtkNvvYUpbUrQJgLYREDTQ0/av4imk 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/mediatek/vcodec/mtk_vcodec_dec_drv.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c index 174a6eec2f54..2fa5c5e6607c 100644 --- a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c +++ b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c @@ -487,7 +487,7 @@ static const struct of_device_id mtk_vcodec_match[] = { MODULE_DEVICE_TABLE(of, mtk_vcodec_match); -static int mtk_vcodec_dec_remove(struct platform_device *pdev) +static void mtk_vcodec_dec_remove(struct platform_device *pdev) { struct mtk_vcodec_dev *dev = platform_get_drvdata(pdev); @@ -509,12 +509,11 @@ static int mtk_vcodec_dec_remove(struct platform_device *pdev) if (!dev->vdec_pdata->is_subdev_supported) pm_runtime_disable(dev->pm.dev); mtk_vcodec_fw_release(dev->fw_handler); - return 0; } static struct platform_driver mtk_vcodec_dec_driver = { .probe = mtk_vcodec_probe, - .remove = mtk_vcodec_dec_remove, + .remove_new = mtk_vcodec_dec_remove, .driver = { .name = MTK_VCODEC_DEC_NAME, .of_match_table = mtk_vcodec_match,