update prev even if it is null

2009-01-09 09:13:02 +01:00
parent 74f2de296c
commit c33a528541
1 changed files with 1 additions and 1 deletions
--- a/src/helper/yans-wifi-helper.cc
+++ b/src/helper/yans-wifi-helper.cc
@@ -131,12 +131,12 @@ YansWifiChannelHelper::Create (void) const
      if (prev != 0)
 	{
 	  prev->SetNext (cur);
-	  prev = cur;
 	}
      if (m_propagationLoss.begin () == i)
 	{
 	  channel->SetPropagationLossModel (cur);
 	}
+      prev = cur;
    }
  Ptr<PropagationDelayModel> delay = m_propagationDelay.Create<PropagationDelayModel> ();
  channel->SetPropagationDelayModel (delay);