Coverity flags that 'h' variable is used before
it's checked for NULL. This patch fixes this issue.
Coverity issue: 363625
Fixes: 769b2de7fb52 ("hash: implement RCU resources reclamation")
Signed-off-by: Yunjian Wang <wangyunjian@huawei.com>
Reviewed-by: Dharmik Thakkar <dharmik.thakkar@arm.com>
Acked-by: Yipeng Wang <yipeng1.wang@intel.com>