From 06118973ede291df8617c4089972cbf888bdc96b Mon Sep 17 00:00:00 2001
From: "Wu, Josh" <Josh.wu@atmel.com>
Date: Thu, 8 May 2014 16:14:05 +0800
Subject: [PATCH] fs/fat: add fat12 cluster check

Signed-off-by: Josh Wu <josh.wu@atmel.com>
---
 include/fat.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/include/fat.h b/include/fat.h
index c8eb7cc..65da733 100644
--- a/include/fat.h
+++ b/include/fat.h
@@ -85,7 +85,9 @@
 			+ (mydata->fatsize != 32 ? 0 : \
 			  (FAT2CPU16((dent)->starthi) << 16)))
 #define CHECK_CLUST(x, fatsize) ((x) <= 1 || \
-				(x) >= ((fatsize) != 32 ? 0xfff0 : 0xffffff0))
+				(x) >= ((fatsize) != 32 ? \
+					((fatsize) != 16 ? 0xff0 : 0xfff0) : \
+					0xffffff0))
 
 typedef struct boot_sector {
 	__u8	ignored[3];	/* Bootstrap code */