Index: /trunk/pswarp/src/pswarpTransformReadout_Opt.c
===================================================================
--- /trunk/pswarp/src/pswarpTransformReadout_Opt.c	(revision 13239)
+++ /trunk/pswarp/src/pswarpTransformReadout_Opt.c	(revision 13240)
@@ -65,6 +65,6 @@
     psPlane *inPix = psPlaneAlloc();    // Coordinates on the input detector
     psF32 **outImageData = output->image->data.F32; // Output image pixels
-    psF32 **outVarData;                 // Output variance pixels
-    psMaskType **outMaskData;           // Output mask pixels
+    psF32 **outVarData = NULL;		// Output variance pixels
+    psMaskType **outMaskData = NULL;	// Output mask pixels
     if (inVar) {
         if (!output->weight) {