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authormichael2008-03-02 23:33:46 +0100
committerWolfgang Denk2008-03-03 00:40:42 +0100
commit8ce4e5c2c02cb7e8adddf7b651d3050d81ce4c1d (patch)
tree8941f5d852a1e857e4e953a58fd475624a1e401b /include/fat.h
parent661bad63a076a96c39c64f136915f146725af92b (diff)
Fix checking fat32 cluster size.
This fixes the cluster size tests in the FAT32 file system. The current implementation of VFAT support doesn't work if the referred cluster has an offset > 16bit representation, causing "fatload" and "fatls" commands etc. to fail. Signed-off-by: michael trimarchi <trimarchi@gandalf.sssup.it>
Diffstat (limited to 'include/fat.h')
-rw-r--r--include/fat.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/fat.h b/include/fat.h
index 92638d535e4..f993ccab1c2 100644
--- a/include/fat.h
+++ b/include/fat.h
@@ -111,7 +111,8 @@
#define START(dent) (FAT2CPU16((dent)->start) \
+ (mydata->fatsize != 32 ? 0 : \
(FAT2CPU16((dent)->starthi) << 16)))
-
+#define CHECK_CLUST(x, fatsize) ((x) <= 1 || \
+ (x) >= ((fatsize) != 32 ? 0xfff0 : 0xffffff0))
typedef struct boot_sector {
__u8 ignored[3]; /* Bootstrap code */