Index: trunk/Mars/mfileio/MWriteFitsFile.cc
===================================================================
--- trunk/Mars/mfileio/MWriteFitsFile.cc	(revision 17697)
+++ trunk/Mars/mfileio/MWriteFitsFile.cc	(revision 17698)
@@ -331,12 +331,13 @@
 Int_t MWriteFitsFile::PostProcess()
 {
+    bool rc = true;
     for (std::map<TString, ofits*>::iterator it=fFitsTables.begin(); it!= fFitsTables.end();it++)
     {
-        it->second->close();
+        rc &= it->second->close();
         delete it->second;
         it->second = NULL;
     }
 
-    return kTRUE;
+    return rc;
 }