276     spinel_ssize_t unpacked;  in HandleReceivedFrame()  local
281 …unpacked = spinel_datatype_unpack(mRxFrameBuffer.GetFrame(), mRxFrameBuffer.GetLength(), "C", &hea…  in HandleReceivedFrame()
292 …VerifyOrExit(unpacked > 0 && (header & SPINEL_HEADER_FLAG) == SPINEL_HEADER_FLAG, error = OT_ERROR…  in HandleReceivedFrame()
332     spinel_ssize_t    unpacked;  in HandleInitialFrame()  local
347         unpacked = spinel_datatype_unpack(data, len, "i", &status);  in HandleInitialFrame()
348         VerifyOrExit(unpacked > 0, error = OT_ERROR_PARSE);  in HandleInitialFrame()
371 …unpacked = spinel_datatype_unpack(data, len, (SPINEL_DATATYPE_UINT_PACKED_S SPINEL_DATATYPE_UINT_P…  in HandleInitialFrame()
374             VerifyOrExit(unpacked > 0, error = OT_ERROR_PARSE);  in HandleInitialFrame()
378 …unpacked = spinel_datatype_unpack_in_place(data, len, SPINEL_DATATYPE_UTF8_S, mVersion, sizeof(mVe…  in HandleInitialFrame()
380             VerifyOrExit(unpacked > 0, error = OT_ERROR_PARSE);  in HandleInitialFrame()
388 …unpacked = spinel_datatype_unpack_in_place(data, len, SPINEL_DATATYPE_DATA_S, capsBuffer, &capsLen…  in HandleInitialFrame()
390             VerifyOrExit(unpacked > 0, error = OT_ERROR_PARSE);  in HandleInitialFrame()
396 …unpacked = spinel_datatype_unpack(capsData, capsLength, SPINEL_DATATYPE_UINT_PACKED_S, &capability…  in HandleInitialFrame()
397                 VerifyOrExit(unpacked > 0, error = OT_ERROR_PARSE);  in HandleInitialFrame()
401                 capsData += unpacked;  in HandleInitialFrame()
402                 capsLength -= static_cast<spinel_size_t>(unpacked);  in HandleInitialFrame()