From patchwork Sun Mar 26 14:31:56 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: 667287 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 D5C23C77B61 for ; Sun, 26 Mar 2023 14:34:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232464AbjCZOeD (ORCPT ); Sun, 26 Mar 2023 10:34:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60632 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232498AbjCZOcz (ORCPT ); Sun, 26 Mar 2023 10:32:55 -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 7EE2D7EDF for ; Sun, 26 Mar 2023 07:32:53 -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 1pgRQO-0000EB-Au; Sun, 26 Mar 2023 16:32:48 +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 1pgRQL-006rfg-Ue; Sun, 26 Mar 2023 16:32:45 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pgRQK-0088ZY-Pj; Sun, 26 Mar 2023 16:32:44 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Mauro Carvalho Chehab , =?utf-8?q?Uwe_Kleine-K=C3=B6?= =?utf-8?q?nig?= Cc: linux-media@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH 089/117] media: omap_vout: Convert to platform remove callback returning void Date: Sun, 26 Mar 2023 16:31:56 +0200 Message-Id: <20230326143224.572654-92-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=1781; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=nblhNa8GMIbQ6zHewbCwjyp1L651cE5gn0ls0Q9QTMk=; b=owGbwMvMwMXY3/A7olbonx/jabUkhhSFsA9VejVPo842nfmjHG2ft7pdVEWmm/fApRmL00TWJ 56ut8zvZDRiYWDkYpAVU2Sxb1yTaVUlF9m59t9lmEGsTCBTGLg4BWAibR/Zf3RVVeqLiE3zc3KX nftAek+Wj0RJ7+WWI6vqkrnWPVa8fFa57+pLmQKFAIc04QPpkrUu2ydv2bTOd/u9NUmP4quDfKY vdWpKlAhq2a604sKd94dyVLU/yCgHqZ7UUlj5Sq1p615PKwmtI4ru2/56tBhEzPTzi9Q6vTWo6/ KyXlnFjTH+u4zW+7lYyf387ZX2p+vnVKvfYbyBEdGJsXsZ0+/17W7rjTD1lk3+G7wt+abA/GmP9 9817flcZF32Lt13gcIH1yuv3V/1tgYlnZVe6tl7cfIaH7YFU2xM/6afSdF/Zx8VunL/2ZkbFSZm pthpXFwdmTjrJv8n66UT105kbWp8N3XxifMfYtybleQA 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/ti/omap/omap_vout.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/media/platform/ti/omap/omap_vout.c b/drivers/media/platform/ti/omap/omap_vout.c index 3e0d9af7ffec..4143274089c3 100644 --- a/drivers/media/platform/ti/omap/omap_vout.c +++ b/drivers/media/platform/ti/omap/omap_vout.c @@ -1569,7 +1569,7 @@ static void omap_vout_cleanup_device(struct omap_vout_device *vout) kfree(vout); } -static int omap_vout_remove(struct platform_device *pdev) +static void omap_vout_remove(struct platform_device *pdev) { int k; struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev); @@ -1587,7 +1587,6 @@ static int omap_vout_remove(struct platform_device *pdev) omap_dss_put_device(vid_dev->displays[k]); } kfree(vid_dev); - return 0; } static int __init omap_vout_probe(struct platform_device *pdev) @@ -1721,7 +1720,7 @@ static struct platform_driver omap_vout_driver = { .driver = { .name = VOUT_NAME, }, - .remove = omap_vout_remove, + .remove_new = omap_vout_remove, }; static int __init omap_vout_init(void)