Merge "esoc: Add check for possible null pointer returns"

/* Copyright (c) 2014, The Linux Foundation. All rights reserved.

/* Copyright (c) 2014-2016, 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

	for (index = 0;; index++) {

		esoc_prop = kasprintf(GFP_KERNEL, "esoc-%d", index);

		if (IS_ERR_OR_NULL(esoc_prop))

			return ERR_PTR(-ENOMEM);

		parp = of_get_property(np, esoc_prop, NULL);

		if (parp == NULL) {

			dev_err(dev, "esoc device not present\n");