[UART] check if write data is valid

2021-10-01 17:36:59 +03:00
parent f87107dedb
commit 381e88ec75
1 changed files with 1 additions and 1 deletions
--- a/cores/esp32/esp32-hal-uart.c
+++ b/cores/esp32/esp32-hal-uart.c
@ -269,7 +269,7 @@ void uartWrite(uart_t* uart, uint8_t c)

 void uartWriteBuf(uart_t* uart, const uint8_t * data, size_t len)
 {
-    if(uart == NULL) {
+    if(uart == NULL || data == NULL || !len) {
        return;
    }