In enic_alloc_consistent() function, if rte_malloc for mze is failed,
!mze is true, memzone should be freed and function should return NULL.
Fixes: da5f560be966 ("net/enic: fix memory freeing")
Cc: stable@dpdk.org
Signed-off-by: RongQiang Xie <xie.rongqiang@zte.com.cn>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>