817     otMessage *responseMessage = nullptr;  in HandleRequest()  local
874         responseMessage = otCoapNewMessage(GetInstancePtr(), nullptr);  in HandleRequest()
875         VerifyOrExit(responseMessage != nullptr, error = OT_ERROR_NO_BUFS);  in HandleRequest()
878 …error = otCoapMessageInitResponse(responseMessage, aMessage, OT_COAP_TYPE_ACKNOWLEDGMENT, response…  in HandleRequest()
885                 SuccessOrExit(error = otCoapMessageAppendBlock2Option(responseMessage,  in HandleRequest()
890             SuccessOrExit(error = otCoapMessageSetPayloadMarker(responseMessage));  in HandleRequest()
895                 SuccessOrExit(error = otMessageAppend(responseMessage, &mResourceContent,  in HandleRequest()
905 …ssOrExit(error = otCoapSecureSendResponseBlockWise(GetInstancePtr(), responseMessage, aMessageInfo,  in HandleRequest()
911 …  SuccessOrExit(error = otCoapSecureSendResponse(GetInstancePtr(), responseMessage, aMessageInfo));  in HandleRequest()
921         if (responseMessage != nullptr)  in HandleRequest()
924             otMessageFree(responseMessage);  in HandleRequest()
964     otMessage *responseMessage = nullptr;  in DefaultHandler()  local
969         responseMessage = otCoapNewMessage(GetInstancePtr(), nullptr);  in DefaultHandler()
970         VerifyOrExit(responseMessage != nullptr, error = OT_ERROR_NO_BUFS);  in DefaultHandler()
972 …SuccessOrExit(error = otCoapMessageInitResponse(responseMessage, aMessage, OT_COAP_TYPE_NON_CONFIR…  in DefaultHandler()
975 …  SuccessOrExit(error = otCoapSecureSendResponse(GetInstancePtr(), responseMessage, aMessageInfo));  in DefaultHandler()
979     if (error != OT_ERROR_NONE && responseMessage != nullptr)  in DefaultHandler()
981         otMessageFree(responseMessage);  in DefaultHandler()