From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1032615AbdEWU3s (ORCPT ); Tue, 23 May 2017 16:29:48 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:48204 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S937716AbdEWU1k (ORCPT ); Tue, 23 May 2017 16:27:40 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Tyrel Datwyler , David Daney , Rob Herring Subject: [PATCH 4.9 062/164] of: fix "/cpus" reference leak in of_numa_parse_cpu_nodes() Date: Tue, 23 May 2017 22:07:59 +0200 Message-Id: <20170523200909.869204644@linuxfoundation.org> X-Mailer: git-send-email 2.13.0 In-Reply-To: <20170523200907.297534241@linuxfoundation.org> References: <20170523200907.297534241@linuxfoundation.org> User-Agent: quilt/0.65 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 4.9-stable review patch. If anyone has any objections, please let me know. ------------------ From: Tyrel Datwyler commit b8475cbee5ab2eac05f9cd5dbcc94c453d3cbf10 upstream. The call to of_find_node_by_path("/cpus") returns the cpus device_node with its reference count incremented. There is no matching of_node_put() call in of_numa_parse_cpu_nodes() which results in a leaked reference to the "/cpus" node. This patch adds an of_node_put() to release the reference. fixes: 298535c00a2c ("of, numa: Add NUMA of binding implementation.") Signed-off-by: Tyrel Datwyler Acked-by: David Daney Signed-off-by: Rob Herring Signed-off-by: Greg Kroah-Hartman --- drivers/of/of_numa.c | 2 ++ 1 file changed, 2 insertions(+) --- a/drivers/of/of_numa.c +++ b/drivers/of/of_numa.c @@ -57,6 +57,8 @@ static void __init of_numa_parse_cpu_nod else node_set(nid, numa_nodes_parsed); } + + of_node_put(cpus); } static int __init of_numa_parse_memory_nodes(void)