diff --git a/Source/GmmLib/ULT/GmmAuxTableULT.cpp b/Source/GmmLib/ULT/GmmAuxTableULT.cpp
index c6a9b53..8b8c193 100644
--- a/Source/GmmLib/ULT/GmmAuxTableULT.cpp
+++ b/Source/GmmLib/ULT/GmmAuxTableULT.cpp
@@ -235,6 +235,7 @@ TEST_F(CTestAuxTable, TestAuxTableContent)
     Walker *ywalker = new Walker(surf->getGfxAddress(GMM_PLANE_Y),
                                  surf->getAuxGfxAddress(GMM_AUX_CCS),
                                  mgr->GetAuxL3TableAddr());
+    ASSERT_TRUE(ywalker != NULL);
 
     for(size_t i = 0; i < surf->getSurfaceSize(GMM_PLANE_Y); i++)
     {
@@ -248,6 +249,8 @@ TEST_F(CTestAuxTable, TestAuxTableContent)
                                   surf->getAuxGfxAddress(GMM_AUX_UV_CCS),
                                   mgr->GetAuxL3TableAddr());
 
+    ASSERT_TRUE(uvwalker != NULL);
+
     for(size_t i = 0; i < surf->getSurfaceSize(GMM_PLANE_U); i++)
     {
         GMM_GFX_ADDRESS addr     = surf->getGfxAddress(GMM_PLANE_U) + i;
diff --git a/Source/GmmLib/ULT/GmmResourceULT.cpp b/Source/GmmLib/ULT/GmmResourceULT.cpp
index 895ae5d..570b427 100644
--- a/Source/GmmLib/ULT/GmmResourceULT.cpp
+++ b/Source/GmmLib/ULT/GmmResourceULT.cpp
@@ -2488,7 +2488,7 @@ TEST_F(CTestResource, TestSeparateStencil)
     }
 
     // Allocate multi-tiles in X/Y/Z dimension.
-    for(uint32_t i = RESOURCE_3D; i <= RESOURCE_3D; i++)
+    uint32_t i = RESOURCE_3D;
     {
         gmmParams.Type        = static_cast<GMM_RESOURCE_TYPE>(i);
         gmmParams.BaseWidth64 = StencilTileSize[0][0] + 0x1;