From ad67e8b47bfdc7890c750b3f36a4f25b7cd0ee46 Mon Sep 17 00:00:00 2001
From: Shu Chen <chenshu@espressif.com>
Date: Thu, 3 Dec 2020 14:08:27 +0800
Subject: [PATCH] [udp6] initialize Socket variables in its constructor (#5902)

---
 src/core/net/udp6.cpp | 2 +-
 src/core/net/udp6.hpp | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/core/net/udp6.cpp b/src/core/net/udp6.cpp
index 91b5e0e70..4c579a2bb 100644
--- a/src/core/net/udp6.cpp
+++ b/src/core/net/udp6.cpp
@@ -74,7 +74,7 @@ exit:
 Udp::Socket::Socket(Instance &aInstance)
     : InstanceLocator(aInstance)
 {
-    mHandle = nullptr;
+    Clear();
 }
 
 Message *Udp::Socket::NewMessage(uint16_t aReserved, const Message::Settings &aSettings)
diff --git a/src/core/net/udp6.hpp b/src/core/net/udp6.hpp
index 9c1aecbf5..37cf6ff79 100644
--- a/src/core/net/udp6.hpp
+++ b/src/core/net/udp6.hpp
@@ -39,6 +39,7 @@
 #include <openthread/udp.h>
 #include <openthread/platform/udp.h>
 
+#include "common/clearable.hpp"
 #include "common/linked_list.hpp"
 #include "common/locator.hpp"
 #include "common/non_copyable.hpp"
@@ -70,7 +71,7 @@ public:
      * This class implements a UDP/IPv6 socket.
      *
      */
-    class SocketHandle : public otUdpSocket, public LinkedListEntry<SocketHandle>
+    class SocketHandle : public otUdpSocket, public LinkedListEntry<SocketHandle>, public Clearable<SocketHandle>
     {
         friend class Udp;
         friend class LinkedList<SocketHandle>;