[UART] check if write data is valid

me-no-dev · me-no-dev · commit 381e88ec750d · 2021-10-01T17:36:59.000+03:00
diff --git 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;
     }
 

Original file line number	Diff line number	Diff line change
`@@ -269,7 +269,7 @@ void uartWrite(uart_t* uart, uint8_t c)`
`269`	`269`
`270`	`270`	`void uartWriteBuf(uart_t* uart, const uint8_t * data, size_t len)`
`271`	`271`	`{`
`272`		`- if(uart == NULL) {`
	`272`	`+ if(uart == NULL \|\| data == NULL \|\| !len) {`
`273`	`273`	`return;`
`274`	`274`	`}`
`275`	`275`