From mboxrd@z Thu Jan 1 00:00:00 1970 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 1649BC433EF for ; Mon, 27 Jun 2022 11:39:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236774AbiF0Ljb (ORCPT ); Mon, 27 Jun 2022 07:39:31 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58518 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236493AbiF0Lhf (ORCPT ); Mon, 27 Jun 2022 07:37:35 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2E0DE285; Mon, 27 Jun 2022 04:33:27 -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 BED48609D0; Mon, 27 Jun 2022 11:33:26 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id C0E52C3411D; Mon, 27 Jun 2022 11:33:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1656329606; bh=Y/a88P4m1PWYShhzeRp5acZdPyFluwgg93mj+dAxSeQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=UmBSLypyGnlKBDiPLZbrgMwr9kB0Tc+2Dcge8g2GQNOl2xFoI3cFajllfJ6oRIL1o sB5wcL53t0C1Lpq4Gx8LwGHmTXAaEhCDP+aQnq2jM0WKmIqkJwdtnqN13yKaR58DT8 JRHvyWpYtpbyJMlJLHtFonCfm8Q5qc2dEYihDYqM= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Miaoqian Lin , Dmitry Baryshkov , Stephen Boyd , Abhinav Kumar , Rob Clark , Sasha Levin Subject: [PATCH 5.15 054/135] drm/msm/mdp4: Fix refcount leak in mdp4_modeset_init_intf Date: Mon, 27 Jun 2022 13:21:01 +0200 Message-Id: <20220627111939.727067876@linuxfoundation.org> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20220627111938.151743692@linuxfoundation.org> References: <20220627111938.151743692@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Miaoqian Lin [ Upstream commit b9cc4598607cb7f7eae5c75fc1e3209cd52ff5e0 ] of_graph_get_remote_node() returns remote device node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. Add missing of_node_put() to avoid refcount leak. Fixes: 86418f90a4c1 ("drm: convert drivers to use of_graph_get_remote_node") Signed-off-by: Miaoqian Lin Reviewed-by: Dmitry Baryshkov Reviewed-by: Stephen Boyd Reviewed-by: Abhinav Kumar Patchwork: https://patchwork.freedesktop.org/patch/488473/ Link: https://lore.kernel.org/r/20220607110841.53889-1-linmq006@gmail.com Signed-off-by: Rob Clark Signed-off-by: Sasha Levin --- drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c b/drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c index cdcaf470f148..97ae68182f3e 100644 --- a/drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c +++ b/drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c @@ -223,6 +223,7 @@ static int mdp4_modeset_init_intf(struct mdp4_kms *mdp4_kms, encoder = mdp4_lcdc_encoder_init(dev, panel_node); if (IS_ERR(encoder)) { DRM_DEV_ERROR(dev->dev, "failed to construct LCDC encoder\n"); + of_node_put(panel_node); return PTR_ERR(encoder); } @@ -232,6 +233,7 @@ static int mdp4_modeset_init_intf(struct mdp4_kms *mdp4_kms, connector = mdp4_lvds_connector_init(dev, panel_node, encoder); if (IS_ERR(connector)) { DRM_DEV_ERROR(dev->dev, "failed to initialize LVDS connector\n"); + of_node_put(panel_node); return PTR_ERR(connector); } -- 2.35.1