fs/fat: add fat12 cluster check

Signed-off-by: N Josh Wu <josh.wu@atmel.com>

fs/fat: add fat12 cluster check
Signed-off-by: N Josh Wu <josh.wu@atmel.com>
06118973 · Wu, Josh · Tom Rini · 8b454eee · 06118973
隐藏空白更改
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Showing with 3 addition and 1 deletion

include/fat.h include/fat.h +3 -1

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--- 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 */