From nobody Sun Oct 19 06:03:08 2025 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 25C33C433FE for ; Wed, 19 Oct 2022 09:08:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232654AbiJSJIT (ORCPT ); Wed, 19 Oct 2022 05:08:19 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55442 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232318AbiJSJFb (ORCPT ); Wed, 19 Oct 2022 05:05:31 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id ADA63F02E; Wed, 19 Oct 2022 01:59:29 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 227C86183D; Wed, 19 Oct 2022 08:55:30 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 35D80C433C1; Wed, 19 Oct 2022 08:55:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1666169729; bh=Qx7YqYDAslYo7Yv+XWnm5lJu4CbNEUcbSjGorjTbQ7k=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=JuZjoa4zuAWdGBvIRWugUeMDTR9iIBtHE+HPFbfdjn/bqk3t6y+dfVAt33H0W5nQ9 fQRyyp5sU7H0Nwe+z+qaI1If9EMThw76sEvRMe9tbbGJD596k2Qasjpxo6qXrtnlBs bUH0ev1w/pJQxKIqvh6QDpSo4MpoPBjejJ4w3tRI= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Liang He , Tomi Valkeinen , Sasha Levin Subject: [PATCH 6.0 387/862] drm/omap: dss: Fix refcount leak bugs Date: Wed, 19 Oct 2022 10:27:54 +0200 Message-Id: <20221019083307.050938061@linuxfoundation.org> X-Mailer: git-send-email 2.38.0 In-Reply-To: <20221019083249.951566199@linuxfoundation.org> References: <20221019083249.951566199@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Liang He [ Upstream commit 8b42057e62120813ebe9274f508fa785b7cab33a ] In dss_init_ports() and __dss_uninit_ports(), we should call of_node_put() for the reference returned by of_graph_get_port_by_id() in fail path or when it is not used anymore. Fixes: 09bffa6e5192 ("drm: omap: use common OF graph helpers") Signed-off-by: Liang He Signed-off-by: Tomi Valkeinen Link: https://patchwork.freedesktop.org/patch/msgid/20220722144348.1306569-= 1-windhl@126.com Signed-off-by: Sasha Levin --- drivers/gpu/drm/omapdrm/dss/dss.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/omapdrm/dss/dss.c b/drivers/gpu/drm/omapdrm/ds= s/dss.c index 0399f3390a0a..c4febb861910 100644 --- a/drivers/gpu/drm/omapdrm/dss/dss.c +++ b/drivers/gpu/drm/omapdrm/dss/dss.c @@ -1176,6 +1176,7 @@ static void __dss_uninit_ports(struct dss_device *dss= , unsigned int num_ports) default: break; } + of_node_put(port); } } =20 @@ -1208,11 +1209,13 @@ static int dss_init_ports(struct dss_device *dss) default: break; } + of_node_put(port); } =20 return 0; =20 error: + of_node_put(port); __dss_uninit_ports(dss, i); return r; } --=20 2.35.1