281   if (husart == NULL)  in HAL_USART_Init()
297     if (husart->MspInitCallback == NULL)  in HAL_USART_Init()
343   if (husart == NULL)  in HAL_USART_DeInit()
358   if (husart->MspDeInitCallback == NULL)  in HAL_USART_DeInit()
436   if (pCallback == NULL)  in HAL_USART_RegisterCallback()
760     if ((pTxData == NULL) || (Size == 0U))  in HAL_USART_Transmit()
791       ptxdata8bits  = NULL;  in HAL_USART_Transmit()
797       ptxdata16bits = NULL;  in HAL_USART_Transmit()
807       if (ptxdata8bits == NULL)  in HAL_USART_Transmit()
874     if ((pRxData == NULL) || (Size == 0U))  in HAL_USART_Receive()
909       prxdata8bits  = NULL;  in HAL_USART_Receive()
915       prxdata16bits = NULL;  in HAL_USART_Receive()
940       if (prxdata8bits == NULL)  in HAL_USART_Receive()
1006     if ((pTxData == NULL) || (pRxData == NULL) || (Size == 0U))  in HAL_USART_TransmitReceive()
1043       prxdata8bits  = NULL;  in HAL_USART_TransmitReceive()
1044       ptxdata8bits  = NULL;  in HAL_USART_TransmitReceive()
1052       ptxdata16bits = NULL;  in HAL_USART_TransmitReceive()
1053       prxdata16bits = NULL;  in HAL_USART_TransmitReceive()
1063       if (ptxdata8bits == NULL)  in HAL_USART_TransmitReceive()
1089         if (ptxdata8bits == NULL)  in HAL_USART_TransmitReceive()
1111         if (prxdata8bits == NULL)  in HAL_USART_TransmitReceive()
1160     if ((pTxData == NULL) || (Size == 0U))  in HAL_USART_Transmit_IT()
1182     husart->TxISR       = NULL;  in HAL_USART_Transmit_IT()
1261     if ((pRxData == NULL) || (Size == 0U))  in HAL_USART_Receive_IT()
1283     husart->RxISR       = NULL;  in HAL_USART_Receive_IT()
1391     if ((pTxData == NULL) || (pRxData == NULL) || (Size == 0U))  in HAL_USART_TransmitReceive_IT()
1517     if ((pTxData == NULL) || (Size == 0U))  in HAL_USART_Transmit_DMA()
1543     if (husart->hdmatx != NULL)  in HAL_USART_Transmit_DMA()
1619     if ((pRxData == NULL) || (Size == 0U))  in HAL_USART_Receive_DMA()
1646     if (husart->hdmarx != NULL)  in HAL_USART_Receive_DMA()
1669       if (husart->hdmatx != NULL)  in HAL_USART_Receive_DMA()
1671         husart->hdmatx->XferErrorCallback = NULL;  in HAL_USART_Receive_DMA()
1672         husart->hdmatx->XferHalfCpltCallback = NULL;  in HAL_USART_Receive_DMA()
1673         husart->hdmatx->XferCpltCallback = NULL;  in HAL_USART_Receive_DMA()
1704       if (husart->hdmarx != NULL)  in HAL_USART_Receive_DMA()
1755     if ((pTxData == NULL) || (pRxData == NULL) || (Size == 0U))  in HAL_USART_TransmitReceive_DMA()
1782     if ((husart->hdmarx != NULL) && (husart->hdmatx != NULL))  in HAL_USART_TransmitReceive_DMA()
1847       if (husart->hdmarx != NULL)  in HAL_USART_TransmitReceive_DMA()
1986   if (husart->hdmatx != NULL)  in HAL_USART_DMAStop()
2000   if (husart->hdmarx != NULL)  in HAL_USART_DMAStop()
2048     if (husart->hdmatx != NULL)  in HAL_USART_Abort()
2052       husart->hdmatx->XferAbortCallback = NULL;  in HAL_USART_Abort()
2074     if (husart->hdmarx != NULL)  in HAL_USART_Abort()
2078       husart->hdmarx->XferAbortCallback = NULL;  in HAL_USART_Abort()
2146   if (husart->hdmatx != NULL)  in HAL_USART_Abort_IT()
2156       husart->hdmatx->XferAbortCallback = NULL;  in HAL_USART_Abort_IT()
2160   if (husart->hdmarx != NULL)  in HAL_USART_Abort_IT()
2170       husart->hdmarx->XferAbortCallback = NULL;  in HAL_USART_Abort_IT()
2181     if (husart->hdmatx != NULL)  in HAL_USART_Abort_IT()
2189         husart->hdmatx->XferAbortCallback = NULL;  in HAL_USART_Abort_IT()
2205     if (husart->hdmarx != NULL)  in HAL_USART_Abort_IT()
2213         husart->hdmarx->XferAbortCallback = NULL;  in HAL_USART_Abort_IT()
2286       if (husart->RxISR != NULL)  in HAL_USART_IRQHandler()
2365         if (husart->RxISR != NULL)  in HAL_USART_IRQHandler()
2390           if (husart->hdmatx != NULL)  in HAL_USART_IRQHandler()
2394             husart->hdmatx->XferAbortCallback = NULL;  in HAL_USART_IRQHandler()
2401           if (husart->hdmarx != NULL)  in HAL_USART_IRQHandler()
2463     if (husart->TxISR != NULL)  in HAL_USART_IRQHandler()
2911   husart->hdmatx->XferAbortCallback = NULL;  in USART_DMATxAbortCallback()
2914   if (husart->hdmarx != NULL)  in USART_DMATxAbortCallback()
2916     if (husart->hdmarx->XferAbortCallback != NULL)  in USART_DMATxAbortCallback()
2959   husart->hdmarx->XferAbortCallback = NULL;  in USART_DMARxAbortCallback()
2962   if (husart->hdmatx != NULL)  in USART_DMARxAbortCallback()
2964     if (husart->hdmatx->XferAbortCallback != NULL)  in USART_DMARxAbortCallback()
3123   husart->RxISR   = NULL;  in USART_SetConfig()
3124   husart->TxISR   = NULL;  in USART_SetConfig()
3352   husart->TxISR = NULL;  in USART_EndTransmit_IT()
3423       husart->RxISR = NULL;  in USART_RxISR_8BIT()
3516       husart->RxISR = NULL;  in USART_RxISR_16BIT()
3615           husart->RxISR = NULL;  in USART_RxISR_8BIT_FIFOEN()
3750           husart->RxISR = NULL;  in USART_RxISR_16BIT_FIFOEN()