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Commit fd806f70 authored by Yadu MG's avatar Yadu MG
Browse files

coresight: Add ports and port child node check in get_ports function 



In of_coresight_get_ports function, avoid unnecessary processing on
device node with no ports and port child nodes.

Change-Id: Ie9b212e512d93fd73b47e21db20ccc992c5779d8
Signed-off-by: default avatarYadu MG <ymg@codeaurora.org>
parent fcf83531

drivers/hwtracing/coresight/of_coresight.c

+8 −1
Original line number Diff line number Diff line 
/* Copyright (c) 2012, 2017-2019 The Linux Foundation. All rights reserved.

/* Copyright (c) 2012, 2017-2020 The Linux Foundation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and
@@ -57,6 +57,13 @@ static void of_coresight_get_ports(const struct device_node *node, 
{

	struct device_node *ep = NULL;

	int in = 0, out = 0;

	struct device_node *ports = NULL, *port = NULL;



	ports = of_get_child_by_name(node, "ports");

	port = of_get_child_by_name(node, "port");



	if (!ports && !port)

		return;



	do {

		ep = of_graph_get_next_endpoint(node, ep);