From f6151f2f9c0567526eee1536265c53efad5248c7 Mon Sep 17 00:00:00 2001
From: Admar Schoonen <admar@familieschoonen.nl>
Date: Fri, 20 Mar 2020 10:07:56 +0100
Subject: [PATCH] Fixed bug where mutex would not be unlocked

---
 cores/esp32/esp32-hal-uart.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/cores/esp32/esp32-hal-uart.c b/cores/esp32/esp32-hal-uart.c
index 8ec1fe6f7d1..e65042634db 100644
--- a/cores/esp32/esp32-hal-uart.c
+++ b/cores/esp32/esp32-hal-uart.c
@@ -257,6 +257,7 @@ size_t uartResizeRxBuffer(uart_t * uart, size_t new_size) {
         vQueueDelete(uart->queue);
         uart->queue = xQueueCreate(new_size, sizeof(uint8_t));
         if(uart->queue == NULL) {
+            UART_MUTEX_UNLOCK();
             return NULL;
         }
     }