From 1ebbd14d0faab0da6673b595f4d25c17a67c24aa Mon Sep 17 00:00:00 2001
From: Lucian Copeland <hierophect@gmail.com>
Date: Thu, 11 Mar 2021 11:02:13 -0500
Subject: [PATCH] Fix UART deinit

---
 ports/stm/common-hal/busio/UART.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/ports/stm/common-hal/busio/UART.c b/ports/stm/common-hal/busio/UART.c
index 0cd9061819..b4794a31b3 100644
--- a/ports/stm/common-hal/busio/UART.c
+++ b/ports/stm/common-hal/busio/UART.c
@@ -268,6 +268,7 @@ void common_hal_busio_uart_deinit(busio_uart_obj_t *self) {
 
     for (size_t i = 0; i < MP_ARRAY_SIZE(mcu_uart_banks); i++) {
         if (mcu_uart_banks[i] == self->handle.Instance) {
+            reserved_uart[i] = false;
             never_reset_uart[i] = false;
             break;
         }