279   if (husart == NULL)  in HAL_USART_Init()
295     if (husart->MspInitCallback == NULL)  in HAL_USART_Init()
341   if (husart == NULL)  in HAL_USART_DeInit()
356   if (husart->MspDeInitCallback == NULL)  in HAL_USART_DeInit()
432   if (pCallback == NULL)  in HAL_USART_RegisterCallback()
765     if ((pTxData == NULL) || (Size == 0U))  in HAL_USART_Transmit()
798       ptxdata8bits  = NULL;  in HAL_USART_Transmit()
804       ptxdata16bits = NULL;  in HAL_USART_Transmit()
814       if (ptxdata8bits == NULL)  in HAL_USART_Transmit()
881     if ((pRxData == NULL) || (Size == 0U))  in HAL_USART_Receive()
918       prxdata8bits  = NULL;  in HAL_USART_Receive()
924       prxdata16bits = NULL;  in HAL_USART_Receive()
949       if (prxdata8bits == NULL)  in HAL_USART_Receive()
1015     if ((pTxData == NULL) || (pRxData == NULL) || (Size == 0U))  in HAL_USART_TransmitReceive()
1054       prxdata8bits  = NULL;  in HAL_USART_TransmitReceive()
1055       ptxdata8bits  = NULL;  in HAL_USART_TransmitReceive()
1063       ptxdata16bits = NULL;  in HAL_USART_TransmitReceive()
1064       prxdata16bits = NULL;  in HAL_USART_TransmitReceive()
1074       if (ptxdata8bits == NULL)  in HAL_USART_TransmitReceive()
1100         if (ptxdata8bits == NULL)  in HAL_USART_TransmitReceive()
1122         if (prxdata8bits == NULL)  in HAL_USART_TransmitReceive()
1171     if ((pTxData == NULL) || (Size == 0U))  in HAL_USART_Transmit_IT()
1195     husart->TxISR       = NULL;  in HAL_USART_Transmit_IT()
1274     if ((pRxData == NULL) || (Size == 0U))  in HAL_USART_Receive_IT()
1298     husart->RxISR       = NULL;  in HAL_USART_Receive_IT()
1406     if ((pTxData == NULL) || (pRxData == NULL) || (Size == 0U))  in HAL_USART_TransmitReceive_IT()
1534     if ((pTxData == NULL) || (Size == 0U))  in HAL_USART_Transmit_DMA()
1562     if (husart->hdmatx != NULL)  in HAL_USART_Transmit_DMA()
1639     if ((pRxData == NULL) || (Size == 0U))  in HAL_USART_Receive_DMA()
1668     if (husart->hdmarx != NULL)  in HAL_USART_Receive_DMA()
1691       if (husart->hdmatx != NULL)  in HAL_USART_Receive_DMA()
1693         husart->hdmatx->XferErrorCallback = NULL;  in HAL_USART_Receive_DMA()
1694         husart->hdmatx->XferHalfCpltCallback = NULL;  in HAL_USART_Receive_DMA()
1695         husart->hdmatx->XferCpltCallback = NULL;  in HAL_USART_Receive_DMA()
1726       if (husart->hdmarx != NULL)  in HAL_USART_Receive_DMA()
1778     if ((pTxData == NULL) || (pRxData == NULL) || (Size == 0U))  in HAL_USART_TransmitReceive_DMA()
1807     if ((husart->hdmarx != NULL) && (husart->hdmatx != NULL))  in HAL_USART_TransmitReceive_DMA()
1872       if (husart->hdmarx != NULL)  in HAL_USART_TransmitReceive_DMA()
2011   if (husart->hdmatx != NULL)  in HAL_USART_DMAStop()
2025   if (husart->hdmarx != NULL)  in HAL_USART_DMAStop()
2071     if (husart->hdmatx != NULL)  in HAL_USART_Abort()
2075       husart->hdmatx->XferAbortCallback = NULL;  in HAL_USART_Abort()
2097     if (husart->hdmarx != NULL)  in HAL_USART_Abort()
2101       husart->hdmarx->XferAbortCallback = NULL;  in HAL_USART_Abort()
2167   if (husart->hdmatx != NULL)  in HAL_USART_Abort_IT()
2177       husart->hdmatx->XferAbortCallback = NULL;  in HAL_USART_Abort_IT()
2181   if (husart->hdmarx != NULL)  in HAL_USART_Abort_IT()
2191       husart->hdmarx->XferAbortCallback = NULL;  in HAL_USART_Abort_IT()
2202     if (husart->hdmatx != NULL)  in HAL_USART_Abort_IT()
2210         husart->hdmatx->XferAbortCallback = NULL;  in HAL_USART_Abort_IT()
2226     if (husart->hdmarx != NULL)  in HAL_USART_Abort_IT()
2234         husart->hdmarx->XferAbortCallback = NULL;  in HAL_USART_Abort_IT()
2306       if (husart->RxISR != NULL)  in HAL_USART_IRQHandler()
2377         if (husart->RxISR != NULL)  in HAL_USART_IRQHandler()
2401           if (husart->hdmatx != NULL)  in HAL_USART_IRQHandler()
2405             husart->hdmatx->XferAbortCallback = NULL;  in HAL_USART_IRQHandler()
2412           if (husart->hdmarx != NULL)  in HAL_USART_IRQHandler()
2473     if (husart->TxISR != NULL)  in HAL_USART_IRQHandler()
2920   husart->hdmatx->XferAbortCallback = NULL;  in USART_DMATxAbortCallback()
2923   if (husart->hdmarx != NULL)  in USART_DMATxAbortCallback()
2925     if (husart->hdmarx->XferAbortCallback != NULL)  in USART_DMATxAbortCallback()
2968   husart->hdmarx->XferAbortCallback = NULL;  in USART_DMARxAbortCallback()
2971   if (husart->hdmatx != NULL)  in USART_DMARxAbortCallback()
2973     if (husart->hdmatx->XferAbortCallback != NULL)  in USART_DMARxAbortCallback()
3134   husart->RxISR   = NULL;  in USART_SetConfig()
3135   husart->TxISR   = NULL;  in USART_SetConfig()
3363   husart->TxISR = NULL;  in USART_EndTransmit_IT()
3434       husart->RxISR = NULL;  in USART_RxISR_8BIT()
3527       husart->RxISR = NULL;  in USART_RxISR_16BIT()
3626           husart->RxISR = NULL;  in USART_RxISR_8BIT_FIFOEN()
3761           husart->RxISR = NULL;  in USART_RxISR_16BIT_FIFOEN()