Fix on regression

diff --git a/src/OBJECT/SALOME_Actor.cxx b/src/OBJECT/SALOME_Actor.cxx
index edc0a3bae392ab417ca050ec1d659d3390ede5a0..43a88b90175110f0b4bf4a7faedd8b3a95688ebb 100644 (file)
--- a/src/OBJECT/SALOME_Actor.cxx
+++ b/src/OBJECT/SALOME_Actor.cxx
@@ -185,8 +185,10 @@ unsigned long int SALOME_Actor::GetMTime(){
   unsigned long mTime = this->Superclass::GetMTime();
   unsigned long time = myTransformFilter->GetMTime();
   mTime = ( time > mTime ? time : mTime );
-  time = myPassFilter[0]->GetInput()->GetMTime();
-  mTime = ( time > mTime ? time : mTime );
+  if(vtkDataSet *aDataSet = myPassFilter[0]->GetInput()){
+    time = aDataSet->GetMTime();
+    mTime = ( time > mTime ? time : mTime );
+  }
   return mTime;
 }