Some additional protections

[u/mrichter/AliRoot.git] / MUON / AliMUONData.cxx

diff --git a/MUON/AliMUONData.cxx b/MUON/AliMUONData.cxx
index 3ef1e050472ba0a2b2e5d7c84edd0f58591be079..665107cd767f9af17d20bbbdcaead02b6e742745 100644 (file)
--- a/MUON/AliMUONData.cxx
+++ b/MUON/AliMUONData.cxx
@@ -799,8 +799,10 @@ AliMUONData::GetDigits() const
   Int_t event = fLoader->GetRunLoader()->GetEventNumber();
   if ( fCurrentEvent != event )
   {
-    fLoader->TreeD()->GetEvent(0);
-    fCurrentEvent = event;
+    if (fLoader->TreeD()) {
+      fLoader->TreeD()->GetEvent(0);
+      fCurrentEvent = event;
+    }
   }
 }