Fixes onReceive deadlock (espressif#6201)

SuGlider · web-flow · commit 39a2080922fa · 2022-01-31T13:03:43.000+02:00
diff --git a/cores/esp32/esp32-hal-uart.c b/cores/esp32/esp32-hal-uart.c
@@ -106,9 +106,7 @@ static void uart_event_task(void *args)
             switch(event.type) {
                 //Event of UART receving data
                 case UART_DATA:
-                    UART_MUTEX_LOCK();
                     if(uart->onReceive) uart->onReceive();
-                    UART_MUTEX_UNLOCK();
                     break;
                 //Event of HW FIFO overflow detected
                 case UART_FIFO_OVF:
