From 9044487e75f54adbba30cf40f28c822513e9db9e Mon Sep 17 00:00:00 2001
From: Iker Luengo <ikerluengo@eprosima.com>
Date: Fri, 28 Feb 2020 07:46:35 +0100
Subject: [PATCH] Refs 7530. Protect add_participant_proxy_data on initPDP

This is a port of #996
---
 src/cpp/rtps/builtin/discovery/participant/PDP.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/cpp/rtps/builtin/discovery/participant/PDP.cpp b/src/cpp/rtps/builtin/discovery/participant/PDP.cpp
index 33a72690e8e..58e92281149 100644
--- a/src/cpp/rtps/builtin/discovery/participant/PDP.cpp
+++ b/src/cpp/rtps/builtin/discovery/participant/PDP.cpp
@@ -339,7 +339,11 @@ bool PDP::initPDP(
     }
     //UPDATE METATRAFFIC.
     mp_builtin->updateMetatrafficLocators(this->mp_PDPReader->getAttributes().unicastLocatorList);
+
+    mp_mutex->lock();
     ParticipantProxyData* pdata = add_participant_proxy_data(part->getGuid(), true);
+    mp_mutex->unlock();
+
     if (pdata == nullptr)
     {
         return false;