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Commit b07050a4 authored by Arun KS's avatar Arun KS
Browse files

esoc: mdm-4x: Fix potential NULL pointer dereference 



NULL pointer dereference can happen with debug register
addresses. Fix this by adding a NULL check.

Change-Id: I25e93d69129278bae9a8490d781e660eaefcccd5
Signed-off-by: default avatarArun KS <arunks@codeaurora.org>
parent f01c0978

drivers/esoc/esoc-mdm-4x.c

+2 −2
Original line number Diff line number Diff line 
/* Copyright (c) 2014-2015, The Linux Foundation. All rights reserved.

/* Copyright (c) 2014-2015, 2017, 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
@@ -499,7 +499,7 @@ static void mdm_configure_debug(struct mdm_ctrl *mdm) 
	struct device_node *node = mdm->dev->of_node;



	addr = of_iomap(node, 0);

	if (IS_ERR(addr)) {

	if (IS_ERR_OR_NULL(addr)) {

		dev_err(mdm->dev, "failed to get debug base addres\n");

		return;

	}