From a0be0b3ed6c953437bcac23c38515a6a2ec464c1 Mon Sep 17 00:00:00 2001
From: "Deomid \"rojer\" Ryabkov" <rojer@rojer.me>
Date: Mon, 26 Jul 2021 21:51:50 +0100
Subject: [PATCH] ESP8266: Fix overflow check condition

---
 platforms/esp8266/src/esp_libc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/platforms/esp8266/src/esp_libc.c b/platforms/esp8266/src/esp_libc.c
index 6e0e23d03..c22a06eec 100644
--- a/platforms/esp8266/src/esp_libc.c
+++ b/platforms/esp8266/src/esp_libc.c
@@ -144,7 +144,7 @@ IRAM int64_t mgos_uptime_micros(void) {
    * We don't want to disable ints for every call to this function,
    * hence the trickery.
    */
-  if (((time ^ prev_time) & (1UL << 31)) != 0) {
+  if (((time ^ prev_time) & (1UL << 31)) != 0 && (time & (1UL << 31)) == 0) {
     mgos_ints_disable();
     if (t[1] == num_overflows) {
       /* We got here first, update the global overflow counter. */