program hangs after using SPI_TransmitReceive_DMA

[Dvan .8]

My program hangs after the return statement.

 pDataDMA = pData->data();
 HAL_StatusTypeDef val = HAL_SPI_TransmitReceive_DMA(&spih, pDataDMA, pDataDMA, pData->size());
 if (val != HAL_OK) {
 Error_Handler();
 }
 return;

[Dvan .8]

Found the problem. Had a while(1) in the callback