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[UART] check if write data is valid

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me-no-dev 2021-10-01 17:36:59 +03:00
parent f87107dedb
commit 381e88ec75
1 changed files with 1 additions and 1 deletions
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2
cores/esp32/esp32-hal-uart.c
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@ -269,7 +269,7 @@ void uartWrite(uart_t* uart, uint8_t c)
void uartWriteBuf(uart_t* uart, const uint8_t * data, size_t len) void uartWriteBuf(uart_t* uart, const uint8_t * data, size_t len)
{ {
if(uart == NULL) { if(uart == NULL || data == NULL || !len) {
return; return;
} }