There's a corner case that all the Rx queue mbufs are allocated but none
of them is used, this patch fixes mbuf free for this case.
Fixes: b6719f8a04bb ("fm10k: release mbuf for vector Rx")
Cc: stable@dpdk.org
Signed-off-by: Xiao Wang <xiao.w.wang@intel.com>
Signed-off-by: Anna Lukin <annal@silicom.co.il>
Reviewed-by: Xiaolong Ye <xiaolong.ye@intel.com>