BlockEntry = GetBlockEntryListFromAddress (RootTable, RegionStart, &TableLevel, &BlockEntrySize, &LastBlockEntry);\r
if (BlockEntry == NULL) {\r
// GetBlockEntryListFromAddress() return NULL when it fails to allocate new pages from the Translation Tables\r
BlockEntry = GetBlockEntryListFromAddress (RootTable, RegionStart, &TableLevel, &BlockEntrySize, &LastBlockEntry);\r
if (BlockEntry == NULL) {\r
// GetBlockEntryListFromAddress() return NULL when it fails to allocate new pages from the Translation Tables\r