diff --git a/gpu/src/GrDrawTarget.cpp b/gpu/src/GrDrawTarget.cpp
index 1ac02f2..3810043 100644
--- a/gpu/src/GrDrawTarget.cpp
+++ b/gpu/src/GrDrawTarget.cpp
@@ -413,9 +413,13 @@
         if (vertexCount) {
             fGeometrySrc.fVertexSrc = kReserved_GeometrySrcType;
             fGeometrySrc.fVertexLayout = vertexLayout;
+        } else if (NULL != vertices) {
+            *vertices = NULL;
         }
         if (indexCount) {
             fGeometrySrc.fIndexSrc = kReserved_GeometrySrcType;
+        } else if (NULL != indices) {
+            *indices = NULL;
         }
     }
     return fReservedGeometry.fLocked;