From ea73c921518ba7334763ba7cb71b39d6234d11f8 Mon Sep 17 00:00:00 2001
From: Abtin Keshavarzian <abtink@google.com>
Date: Tue, 25 Jul 2017 13:12:25 -0700
Subject: [PATCH] [mac] Ensure to clear `mDelaySleep` flag after delaying sleep
 (#2023)

This commit fixes an issue related to the OpenThread feature
`OPENTHREAD_CONFIG_STAY_AWAKE_BETWEEN_FRAGMENTS` to  ensure that
`mDelaySleep` flag is cleared after timer starts so that sleep is
delayed only once.
---
 src/core/mac/mac.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/core/mac/mac.cpp b/src/core/mac/mac.cpp
index b30c44eb2..8621a3a85 100644
--- a/src/core/mac/mac.cpp
+++ b/src/core/mac/mac.cpp
@@ -1126,8 +1126,9 @@ void Mac::RadioSleep(void)
 
     if (mDelaySleep)
     {
-        // Restart delay sleep timer
+        // Start delay sleep timer
         mReceiveTimer.Start(kSleepDelay);
+        mDelaySleep = false;
     }
     else
 #endif