espressif/ESP8266_RTOS_SDK
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ESP8266_RTOS_SDK/components/esp8266/driver/uart.c
Chen Wu f9aca5a8e0 fix: potential blocking code when call uart_wait_tx_done() 
1. there is a risk of ticks_end overflow, if xTaskGetTickCount() plus ticks_to_wait is bigger than portMAX_DELAY
2. potential blocking code on waiting for tx fifo done. It usually occurs at esp uart uses flow control, and the other side of uart not.
2021-04-28 15:27:11 +08:00

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