nvme_ns_info_snap
if (!nvme_ns_info_snap(npa->npa_ns, &ns_info)) {
if (npa->npa_ns != NULL && !nvme_ns_info_snap(npa->npa_ns,
extern bool nvme_ns_info_snap(nvme_ns_t *, nvme_ns_info_t **);
if (!nvme_ns_info_snap(ns, &info)) {