Index: trunk/psLib/src/fits/psFits.c
===================================================================
--- trunk/psLib/src/fits/psFits.c	(revision 7846)
+++ trunk/psLib/src/fits/psFits.c	(revision 7914)
@@ -7,6 +7,6 @@
  *  @author Robert DeSonia, MHPCC
  *
- *  @version $Revision: 1.56 $ $Name: not supported by cvs2svn $
- *  @date $Date: 2006-07-08 03:06:40 $
+ *  @version $Revision: 1.57 $ $Name: not supported by cvs2svn $
+ *  @date $Date: 2006-07-15 02:57:12 $
  *
  *  Copyright 2004-2005 Maui High Performance Computing Center, University of Hawaii
@@ -174,4 +174,7 @@
 bool psMemCheckFits(psPtr ptr)
 {
+    if (!is_psType(ptr)) {
+        return false;
+    }
     return ( psMemGetDeallocator(ptr) == (psFreeFunc)fitsFree );
 }