From ae04d5928030b809c72dd710f0c2a00d847aaa3f Mon Sep 17 00:00:00 2001
From: Jonathan Hui <jonhui@google.com>
Date: Mon, 8 Apr 2019 21:25:37 -0700
Subject: [PATCH] [lowpan] suppress unchecked return warning in
 Lowpan::Compress() (#3740)

---
 src/core/thread/lowpan.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/core/thread/lowpan.cpp b/src/core/thread/lowpan.cpp
index 655abbee8..13ce22e47 100644
--- a/src/core/thread/lowpan.cpp
+++ b/src/core/thread/lowpan.cpp
@@ -448,8 +448,8 @@ compress:
 exit:
     if (error == OT_ERROR_NONE)
     {
-        aBuf.Write(hcCtl >> 8);
-        aBuf.Write(hcCtl & 0xff);
+        IgnoreReturnValue(aBuf.Write(hcCtl >> 8));
+        IgnoreReturnValue(aBuf.Write(hcCtl & 0xff));
         aBuf = buf;
     }
     else