Index: trunk/Ohana/src/opihi/cmd.data/shift.c
===================================================================
--- trunk/Ohana/src/opihi/cmd.data/shift.c	(revision 34088)
+++ trunk/Ohana/src/opihi/cmd.data/shift.c	(revision 39233)
@@ -48,5 +48,5 @@
   gfits_free_matrix (&out[0].matrix);
   gfits_free_header (&out[0].header);
-  CreateBuffer (out, nx, ny, -32, 0.0, 1.0);
+  if (!CreateBuffer (out, nx, ny, -32, 0.0, 1.0)) return FALSE;
 
   DXin = (dx < 0) ? -dx : 0;