FatPkg/EnhancedFatDxe Fix Double Cluster Allocation

[mirror_edk2.git] / FatPkg / EnhancedFatDxe / FatFileSystem.h

diff --git a/FatPkg/EnhancedFatDxe/FatFileSystem.h b/FatPkg/EnhancedFatDxe/FatFileSystem.h
index a4d44054e16bb77b4baec1b4d835df1231c588d7..80cb802b0866c53285d35d1a0e3aaff81a422c5a 100644 (file)
--- a/FatPkg/EnhancedFatDxe/FatFileSystem.h
+++ b/FatPkg/EnhancedFatDxe/FatFileSystem.h
@@ -1,7 +1,7 @@
 /** @file\r
   Definitions for on-disk FAT structures.\r
 \r
-Copyright (c) 2005, Intel Corporation. All rights reserved.<BR>\r
+Copyright (c) 2005 - 2017, Intel Corporation. All rights reserved.<BR>\r
 This program and the accompanying materials are licensed and made available\r
 under the terms and conditions of the BSD License which accompanies this\r
 distribution. The full text of the license may be found at\r
@@ -26,7 +26,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 //\r
 // FAT entry values\r
 //\r
-#define FAT_CLUSTER_SPECIAL_EXT       (-1 & (~0xF))\r
+#define FAT_CLUSTER_SPECIAL_EXT       (MAX_UINTN & (~0xF))\r
 #define FAT_CLUSTER_SPECIAL           ((FAT_CLUSTER_SPECIAL_EXT) | 0x07)\r
 #define FAT_CLUSTER_FREE              0\r
 #define FAT_CLUSTER_RESERVED          (FAT_CLUSTER_SPECIAL)\r