Index: trunk/ppStack/src/ppStackMatch.c
===================================================================
--- trunk/ppStack/src/ppStackMatch.c	(revision 23958)
+++ trunk/ppStack/src/ppStackMatch.c	(revision 23977)
@@ -209,5 +209,5 @@
             pmFPAview *view = pmFPAviewAlloc(0); // View to readout of interest
             view->chip = view->cell = view->readout = 0;
-            psString filename = pmFPAfileNameFromRule(filerule->rule, file, view); // Filename of interest
+            psString filename = pmFPAfileNameFromRule(file->filerule, file, view); // Filename of interest
 
             // Read convolution kernel
@@ -241,12 +241,6 @@
                 !readImage(&readout->variance, options->varianceNames->data[index], config)) {
                 psError(PS_ERR_IO, false, "Unable to read previously produced image.");
-                psFree(imageName);
-                psFree(maskName);
-                psFree(varianceName);
                 return false;
             }
-            psFree(imageName);
-            psFree(maskName);
-            psFree(varianceName);
 
             psRegion *region = psMetadataLookupPtr(NULL, conv->analysis,