From patchwork Tue Sep 8 07:18:41 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dan Carpenter X-Patchwork-Id: 11762669 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 62DB559D for ; Tue, 8 Sep 2020 07:19:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3DB2C21D1A for ; Tue, 8 Sep 2020 07:19:05 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b="qVhAPuDp" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729345AbgIHHTD (ORCPT ); Tue, 8 Sep 2020 03:19:03 -0400 Received: from userp2130.oracle.com ([156.151.31.86]:38832 "EHLO userp2130.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729463AbgIHHSy (ORCPT ); Tue, 8 Sep 2020 03:18:54 -0400 Received: from pps.filterd (userp2130.oracle.com [127.0.0.1]) by userp2130.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 0887FHNh063121; Tue, 8 Sep 2020 07:18:50 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=date : from : to : cc : subject : message-id : mime-version : content-type; s=corp-2020-01-29; bh=HJabx6dyrtZApOlu8pzful/PRJRHZB+ekJGpE83eeic=; b=qVhAPuDpOElLBMlan9Brd/wyd1jxfyrMgUAq8HB4bCyxLohM9UhCk64rnGYSDoQKPcqO ZGKEtXWIehKPsIMJ0+nFX/pPtdaC4qCPzA9UZmMNFONEucMiwDM3Vd2KSeX8XaH91W0r TEYAQm4dgJgiVL/bhP73Dnm4OhHN1kKT8KKq4PZEwul4N5pqqBxnPjynwu1eqE18Vdfn pg8+myJiCt5cgcMlRjw6aXvFXrodD1cY01dYkEPCdAwQszXMx14D8lWa2CeTRlmhASX7 UZSKMCh7yf5i//YFinwFlceOBiYPTryTFpdxlFy3UriM4wS9QilpeGiT63rECbJbCXPv 1A== Received: from userp3030.oracle.com (userp3030.oracle.com [156.151.31.80]) by userp2130.oracle.com with ESMTP id 33c23qsk2h-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 08 Sep 2020 07:18:50 +0000 Received: from pps.filterd (userp3030.oracle.com [127.0.0.1]) by userp3030.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 0887GGH4082781; Tue, 8 Sep 2020 07:18:49 GMT Received: from userv0122.oracle.com (userv0122.oracle.com [156.151.31.75]) by userp3030.oracle.com with ESMTP id 33cmkvf7gf-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 08 Sep 2020 07:18:49 +0000 Received: from abhmp0005.oracle.com (abhmp0005.oracle.com [141.146.116.11]) by userv0122.oracle.com (8.14.4/8.14.4) with ESMTP id 0887Im0K001522; Tue, 8 Sep 2020 07:18:48 GMT Received: from mwanda (/41.57.98.10) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Tue, 08 Sep 2020 00:18:47 -0700 Date: Tue, 8 Sep 2020 10:18:41 +0300 From: Dan Carpenter To: Andy Gross , Bjorn Andersson Cc: Ohad Ben-Cohen , linux-arm-msm@vger.kernel.org, linux-remoteproc@vger.kernel.org, kernel-janitors@vger.kernel.org Subject: [PATCH] rpmsg: smd: Fix a kobj leak in in qcom_smd_parse_edge() Message-ID: <20200908071841.GA294938@mwanda> MIME-Version: 1.0 Content-Disposition: inline X-Mailer: git-send-email haha only kidding X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9737 signatures=668679 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxscore=0 phishscore=0 suspectscore=0 spamscore=0 mlxlogscore=740 adultscore=0 malwarescore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2006250000 definitions=main-2009080067 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9737 signatures=668679 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 adultscore=0 priorityscore=1501 mlxlogscore=747 mlxscore=0 bulkscore=0 suspectscore=0 spamscore=0 malwarescore=0 phishscore=0 lowpriorityscore=0 clxscore=1011 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2006250000 definitions=main-2009080067 Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org We need to call of_node_put(node) on the error paths for this function. Fixes: 53e2822e56c7 ("rpmsg: Introduce Qualcomm SMD backend") Signed-off-by: Dan Carpenter --- drivers/rpmsg/qcom_smd.c | 32 ++++++++++++++++++++++---------- 1 file changed, 22 insertions(+), 10 deletions(-) diff --git a/drivers/rpmsg/qcom_smd.c b/drivers/rpmsg/qcom_smd.c index 4abbeea782fa..19903de6268d 100644 --- a/drivers/rpmsg/qcom_smd.c +++ b/drivers/rpmsg/qcom_smd.c @@ -1338,7 +1338,7 @@ static int qcom_smd_parse_edge(struct device *dev, ret = of_property_read_u32(node, key, &edge->edge_id); if (ret) { dev_err(dev, "edge missing %s property\n", key); - return -EINVAL; + goto put_node; } edge->remote_pid = QCOM_SMEM_HOST_ANY; @@ -1349,32 +1349,37 @@ static int qcom_smd_parse_edge(struct device *dev, edge->mbox_client.knows_txdone = true; edge->mbox_chan = mbox_request_channel(&edge->mbox_client, 0); if (IS_ERR(edge->mbox_chan)) { - if (PTR_ERR(edge->mbox_chan) != -ENODEV) - return PTR_ERR(edge->mbox_chan); + if (PTR_ERR(edge->mbox_chan) != -ENODEV) { + ret = PTR_ERR(edge->mbox_chan); + goto put_node; + } edge->mbox_chan = NULL; syscon_np = of_parse_phandle(node, "qcom,ipc", 0); if (!syscon_np) { dev_err(dev, "no qcom,ipc node\n"); - return -ENODEV; + ret = -ENODEV; + goto put_node; } edge->ipc_regmap = syscon_node_to_regmap(syscon_np); - if (IS_ERR(edge->ipc_regmap)) - return PTR_ERR(edge->ipc_regmap); + if (IS_ERR(edge->ipc_regmap)) { + ret = PTR_ERR(edge->ipc_regmap); + goto put_node; + } key = "qcom,ipc"; ret = of_property_read_u32_index(node, key, 1, &edge->ipc_offset); if (ret < 0) { dev_err(dev, "no offset in %s\n", key); - return -EINVAL; + goto put_node; } ret = of_property_read_u32_index(node, key, 2, &edge->ipc_bit); if (ret < 0) { dev_err(dev, "no bit in %s\n", key); - return -EINVAL; + goto put_node; } } @@ -1385,7 +1390,8 @@ static int qcom_smd_parse_edge(struct device *dev, irq = irq_of_parse_and_map(node, 0); if (irq < 0) { dev_err(dev, "required smd interrupt missing\n"); - return -EINVAL; + ret = irq; + goto put_node; } ret = devm_request_irq(dev, irq, @@ -1393,12 +1399,18 @@ static int qcom_smd_parse_edge(struct device *dev, node->name, edge); if (ret) { dev_err(dev, "failed to request smd irq\n"); - return ret; + goto put_node; } edge->irq = irq; return 0; + +put_node: + of_node_put(node); + edge->of_node = NULL; + + return ret; } /*