This commit fixes the issue reported by Coverity: an array compared
against NULL is always false.
Coverity-CID: 143715
Coverity-CID: 143730
THis patch is ported from below patch:
https://gerrit.zephyrproject.org/r/#/c/7419/
Jira : ZEP-2468
Signed-off-by: Ramakrishna Pallala <ramakrishna.pallala@intel.com>