use freed pointer for testing getAllocInfo

Author: sherry-yuan

test/acl_usm_test.cpp

@@ -425,20 +425,21 @@ MT_TEST(acl_usm, buffer_location_usm) {
   CHECK_EQUAL(CL_SUCCESS, status);
   CHECK_EQUAL(0, read_mem_id);
   CHECK_EQUAL(sizeof(cl_uint), ret_size);
-  // Check when given pointer is invalid
-  status = clGetMemAllocInfoINTEL(m_context, NULL,
+
+  status = clMemFreeINTEL(m_context, test_ptr);
+  ACL_LOCKED(CHECK_EQUAL(acl_usm_ptr_belongs_to_context(m_context, test_ptr),
+                         CL_FALSE));
+  CHECK(m_context->usm_allocation.empty());
+
+  // Check when given pointer is already freed
+  status = clGetMemAllocInfoINTEL(m_context, test_ptr,
                                   CL_MEM_ALLOC_BUFFER_LOCATION_INTEL,
                                   sizeof(cl_uint), &read_mem_id, &ret_size);
 
   CHECK_EQUAL(CL_SUCCESS, status);
   CHECK_EQUAL(0, read_mem_id);
   CHECK_EQUAL(sizeof(cl_uint), ret_size);
-
-  status = clMemFreeINTEL(m_context, test_ptr);
   CHECK_EQUAL(status, CL_SUCCESS);
-  ACL_LOCKED(CHECK_EQUAL(acl_usm_ptr_belongs_to_context(m_context, test_ptr),
-                         CL_FALSE));
-  CHECK(m_context->usm_allocation.empty());
 
   ACL_LOCKED(acl_print_debug_msg("end buffer_location_usm\n"));
 }