142     Error error = kErrorNone;  in InitMessage()
156     Error error = kErrorNone;  in InitResponse()
179     if (error != kErrorNone)  in Send()
217 … if ((aTransmitHook != nullptr) && (aMessage.ReadBlockOptionValues(kOptionBlock2) == kErrorNone) &&  in SendMessage()
239 … if ((aTransmitHook != nullptr) && (aMessage.ReadBlockOptionValues(kOptionBlock1) == kErrorNone) &&  in SendMessage()
305 …              FinalizeCoapTransaction(*origRequest, handlerMetadata, nullptr, nullptr, kErrorNone);  in SendMessage()
344     if (error != kErrorNone && storedCopy != nullptr)  in SendMessage()
401     Error    error   = kErrorNone;  in SendEmptyMessage()
421     Error    error   = kErrorNone;  in SendHeaderResponse()
537             error = kErrorNone;  in AbortTransaction()
546     Error    error       = kErrorNone;  in CopyAndEnqueueMessage()
589     Error error = kErrorNone;  in CacheLastBlockResponse()
607     Error            error       = kErrorNone;  in PrepareNextBlockRequest()
668     Error    error                = kErrorNone;  in SendNextBlock1Request()
680         FinalizeCoapTransaction(aRequest, aCoapMetadata, &aMessage, &aMessageInfo, kErrorNone);  in SendNextBlock1Request()
727     Error    error                = kErrorNone;  in SendNextBlock2Request()
755         FinalizeCoapTransaction(aRequest, aCoapMetadata, &aMessage, &aMessageInfo, kErrorNone);  in SendNextBlock2Request()
787     Error    error                = kErrorNone;  in ProcessBlock1Request()
831         error = kErrorNone;  in ProcessBlock1Request()
835     if (error != kErrorNone && error != kErrorBusy && response != nullptr)  in ProcessBlock1Request()
847     Error            error                = kErrorNone;  in ProcessBlock2Request()
984     if (error != kErrorNone)  in SendCopy()
1039     if (message.ParseHeader() != kErrorNone)  in Receive()
1066     Error    error   = kErrorNone;  in ProcessReceivedResponse()
1110                 FinalizeCoapTransaction(*request, metadata, &aMessage, &aMessageInfo, kErrorNone);  in ProcessReceivedResponse()
1141 …        metadata.mResponseHandler(metadata.mResponseContext, &aMessage, &aMessageInfo, kErrorNone);  in ProcessReceivedResponse()
1185 …                 FinalizeCoapTransaction(*request, metadata, &aMessage, &aMessageInfo, kErrorNone);  in ProcessReceivedResponse()
1194                         error != kErrorNone)  in ProcessReceivedResponse()
1207                         error != kErrorNone)  in ProcessReceivedResponse()
1229 …                 FinalizeCoapTransaction(*request, metadata, &aMessage, &aMessageInfo, kErrorNone);  in ProcessReceivedResponse()
1255 …        metadata.mResponseHandler(metadata.mResponseContext, &aMessage, &aMessageInfo, kErrorNone);  in ProcessReceivedResponse()
1259             FinalizeCoapTransaction(*request, metadata, &aMessage, &aMessageInfo, kErrorNone);  in ProcessReceivedResponse()
1267     if (error == kErrorNone && request == nullptr)  in ProcessReceivedResponse()
1282     Error    error          = kErrorNone;  in ProcessReceivedRequest()
1297     case kErrorNone:  in ProcessReceivedRequest()
1368                     case kErrorNone:  in ProcessReceivedRequest()
1372                         error = kErrorNone;  in ProcessReceivedRequest()
1392 …                if ((error = ProcessBlock2Request(aMessage, aMessageInfo, resource)) != kErrorNone)  in ProcessReceivedRequest()
1405             error = kErrorNone;  in ProcessReceivedRequest()
1415         error = kErrorNone;  in ProcessReceivedRequest()
1424             error = kErrorNone;  in ProcessReceivedRequest()
1432         error = kErrorNone;  in ProcessReceivedRequest()
1440     if (error != kErrorNone)  in ProcessReceivedRequest()
1462     Error          error = kErrorNone;  in GetMatchedResponseCopy()
1514     VerifyOrExit(metadata.AppendTo(*responseCopy) == kErrorNone, responseCopy->Free());  in EnqueueResponse()
1675     Error error        = kErrorNone;  in Start()
1686     if (error != kErrorNone && socketOpened)  in Start()
1696     Error error = kErrorNone;  in Stop()