Index: trunk/ppStack/src/ppStackReadout.c
===================================================================
--- trunk/ppStack/src/ppStackReadout.c	(revision 14853)
+++ trunk/ppStack/src/ppStackReadout.c	(revision 14854)
@@ -104,4 +104,5 @@
 #else
         convolved = psMemIncrRefCounter(ro);
+        sources = NULL;
 #endif