spectrum: Avoid possible use of null pointer

2021-08-21 18:02:01 -07:00
parent d53ea68bc2
commit 24d671704a
1 changed files with 5 additions and 1 deletions
--- a/src/spectrum/model/three-gpp-channel-model.cc
+++ b/src/spectrum/model/three-gpp-channel-model.cc
@@ -179,8 +179,12 @@ ThreeGppChannelModel::~ThreeGppChannelModel ()
 void
 ThreeGppChannelModel::DoDispose ()
 {
+  NS_LOG_FUNCTION (this);
  m_channelMap.clear ();
-  m_channelConditionModel->Dispose ();
+  if (m_channelConditionModel)
+    {
+      m_channelConditionModel->Dispose ();
+    }
  m_channelConditionModel = nullptr;
 }