From 4d7e86eeb6627fabc9595ead52155ab3fbc4a866 Mon Sep 17 00:00:00 2001
From: xiaqilin <xiaqilin@espressif.com>
Date: Wed, 21 Feb 2024 15:09:36 +0800
Subject: [PATCH] fix(openthread): fix openthread alarm timer calculation
 remaining_us overflow issue

---
 components/openthread/src/port/esp_openthread_alarm.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/components/openthread/src/port/esp_openthread_alarm.c b/components/openthread/src/port/esp_openthread_alarm.c
index f1e4a52d12..ce19e71dc8 100644
--- a/components/openthread/src/port/esp_openthread_alarm.c
+++ b/components/openthread/src/port/esp_openthread_alarm.c
@@ -101,8 +101,8 @@ void esp_openthread_alarm_deinit(void)
 void esp_openthread_alarm_update(esp_openthread_mainloop_context_t *mainloop)
 {
     struct timeval *timeout = &mainloop->timeout;
-    int32_t remain_min_time_us = INT32_MAX;
-    int32_t remaining_us = 0;
+    int64_t remain_min_time_us = INT64_MAX;
+    int64_t remaining_us = 0;
     if (s_is_ms_running) {
         remaining_us = calculate_duration(s_alarm_ms, otPlatAlarmMilliGetNow()) * US_PER_MS;
         if (remain_min_time_us > remaining_us) {