From 6ab3ab44b615111cef1b8081ed623f97f12d68ed Mon Sep 17 00:00:00 2001
From: collin <collin@livio.io>
Date: Wed, 20 May 2020 12:49:38 -0400
Subject: fix memory error in TcpDevice::IsSameAs

---
 src/components/transport_manager/src/tcp/tcp_device.cc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/components/transport_manager/src/tcp/tcp_device.cc b/src/components/transport_manager/src/tcp/tcp_device.cc
index 16abdfc22d..d9bc8aec78 100644
--- a/src/components/transport_manager/src/tcp/tcp_device.cc
+++ b/src/components/transport_manager/src/tcp/tcp_device.cc
@@ -66,9 +66,9 @@ TcpDevice::TcpDevice(const in_addr_t& in_addr,
 bool TcpDevice::IsSameAs(const Device* other) const {
   LOG4CXX_AUTO_TRACE(logger_);
   LOG4CXX_DEBUG(logger_, "Device: " << other);
-  const TcpDevice* other_tcp_device = static_cast<const TcpDevice*>(other);
+  const TcpDevice* other_tcp_device = dynamic_cast<const TcpDevice*>(other);
 
-  if (other_tcp_device->in_addr_ == in_addr_) {
+  if (other_tcp_device && other_tcp_device->in_addr_ == in_addr_) {
     LOG4CXX_TRACE(
         logger_,
         "exit with TRUE. Condition: other_tcp_device->in_addr_ == in_addr_");
-- 
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