bhnd_nvram_tlv_next_record
while (!(error = bhnd_nvram_tlv_next_record(io, &next, &off, &tag))) {
error = bhnd_nvram_tlv_next_record(io, &next, NULL, &tag);
error = bhnd_nvram_tlv_next_record(tlv->data, next, &offset,
static int bhnd_nvram_tlv_next_record(