From patchwork Mon Sep 21 16:28:10 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "gregkh@linuxfoundation.org" X-Patchwork-Id: 263712 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-14.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7255DC43465 for ; Mon, 21 Sep 2020 16:40:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3364B235F9 for ; Mon, 21 Sep 2020 16:40:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1600706430; bh=xUQSWHTQ2Hq+DXgU9icpSwq4lUHttMxUJ9nzTMmdyaU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=kFw8+80C7pFe0ZAJG1OFtPwybbzGIAiwhB7W3C3cBWdaC+ITMmUvuGmH3WYGMr/sz uCdj3GVTlSDXomDRkGcNldc/ScpSSR8bf5CYYAdxB6Yl75xizw2VTrTOZRkJ5kbu5D F5Mgks0I31gwH3B/1PtZbwSqlJjRsTUaWvmYPux8= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728446AbgIUQkP (ORCPT ); Mon, 21 Sep 2020 12:40:15 -0400 Received: from mail.kernel.org ([198.145.29.99]:42454 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728315AbgIUQkB (ORCPT ); Mon, 21 Sep 2020 12:40:01 -0400 Received: from localhost (83-86-74-64.cable.dynamic.v4.ziggo.nl [83.86.74.64]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id C9D05239D0; Mon, 21 Sep 2020 16:39:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1600706400; bh=xUQSWHTQ2Hq+DXgU9icpSwq4lUHttMxUJ9nzTMmdyaU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=SkCmzgwmwdPOcvmqO2wmUjNFpHSyqSo6wCOGX9VSvssT8FMGDZvU4zqq26cNVAF/8 7UAnuFhWifC9VP8nXDMKT4w1GN6loIXb++Qkm6OghC13RqDRrUapD4fM6cPcGSPZIX HXGtYM5ZGaTZFcCs2J/43SEcI5qFWcisnSNhVJbs= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Yu Kuai , Chun-Kuang Hu , Sasha Levin Subject: [PATCH 4.14 83/94] drm/mediatek: Add missing put_device() call in mtk_hdmi_dt_parse_pdata() Date: Mon, 21 Sep 2020 18:28:10 +0200 Message-Id: <20200921162039.342702062@linuxfoundation.org> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200921162035.541285330@linuxfoundation.org> References: <20200921162035.541285330@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Yu Kuai [ Upstream commit 0680a622318b8d657323b94082f4b9a44038dfee ] if of_find_device_by_node() succeed, mtk_drm_kms_init() doesn't have a corresponding put_device(). Thus add jump target to fix the exception handling for this function implementation. Fixes: 8f83f26891e1 ("drm/mediatek: Add HDMI support") Signed-off-by: Yu Kuai Signed-off-by: Chun-Kuang Hu Signed-off-by: Sasha Levin --- drivers/gpu/drm/mediatek/mtk_hdmi.c | 26 ++++++++++++++++++-------- 1 file changed, 18 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi.c b/drivers/gpu/drm/mediatek/mtk_hdmi.c index 3c69c73fbd473..f1a376c34e713 100644 --- a/drivers/gpu/drm/mediatek/mtk_hdmi.c +++ b/drivers/gpu/drm/mediatek/mtk_hdmi.c @@ -1476,25 +1476,30 @@ static int mtk_hdmi_dt_parse_pdata(struct mtk_hdmi *hdmi, dev_err(dev, "Failed to get system configuration registers: %d\n", ret); - return ret; + goto put_device; } hdmi->sys_regmap = regmap; mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); hdmi->regs = devm_ioremap_resource(dev, mem); - if (IS_ERR(hdmi->regs)) - return PTR_ERR(hdmi->regs); + if (IS_ERR(hdmi->regs)) { + ret = PTR_ERR(hdmi->regs); + goto put_device; + } remote = of_graph_get_remote_node(np, 1, 0); - if (!remote) - return -EINVAL; + if (!remote) { + ret = -EINVAL; + goto put_device; + } if (!of_device_is_compatible(remote, "hdmi-connector")) { hdmi->next_bridge = of_drm_find_bridge(remote); if (!hdmi->next_bridge) { dev_err(dev, "Waiting for external bridge\n"); of_node_put(remote); - return -EPROBE_DEFER; + ret = -EPROBE_DEFER; + goto put_device; } } @@ -1503,7 +1508,8 @@ static int mtk_hdmi_dt_parse_pdata(struct mtk_hdmi *hdmi, dev_err(dev, "Failed to find ddc-i2c-bus node in %pOF\n", remote); of_node_put(remote); - return -EINVAL; + ret = -EINVAL; + goto put_device; } of_node_put(remote); @@ -1511,10 +1517,14 @@ static int mtk_hdmi_dt_parse_pdata(struct mtk_hdmi *hdmi, of_node_put(i2c_np); if (!hdmi->ddc_adpt) { dev_err(dev, "Failed to get ddc i2c adapter by node\n"); - return -EINVAL; + ret = -EINVAL; + goto put_device; } return 0; +put_device: + put_device(hdmi->cec_dev); + return ret; } /*