c67daf4a24
As qemu_new_net_client create new ncs but error happens later, ncs will be left in global net_clients list and we can't use them any more, so we need to cleanup them. Cc: qemu-stable@nongnu.org Signed-off-by: linzhecheng <linzhecheng@huawei.com> Signed-off-by: Jason Wang <jasowang@redhat.com>