Index: pdo.c
===================================================================
--- pdo.c	(revision 74244)
+++ pdo.c	(working copy)
@@ -1170,11 +1170,17 @@
         //
         *OutData = Request->DataBuffer;
     }
+    else
+    {
+        //
+        // free buffer
+        //
+        ExFreePoolWithTag(Request->DataBuffer, USB_STOR_TAG);
+    }
 
     //
     // free resources
     //
-    ExFreePoolWithTag(Request->DataBuffer, USB_STOR_TAG);
     ExFreePoolWithTag(Request, USB_STOR_TAG);
     IoFreeIrp(Irp);
     return Status;