[PATCH][NTFS] nn is not an index

Tom Eastep (eastep@loc1.tandem.com)
Tue, 18 Aug 1998 08:05:15 -0700

All files on one of my NTFS partitions (/dev/sda1) are inaccessible. If
I

mount -t ntfs /dev/sda1 /nt/c
ls -a /nt/c

ls returns no information (not even ".") and a message similar to the
following is logged:

10 is not an index

The problem occurs in the function ntfs_fixup_record() where a signed
short local variable is used to hold an unsigned value and later compare
with another unsigned field. The following trivial patch corrects the
problem.

--- linux/fs/ntfs/super.c.orig Fri Aug 7 14:53:50 1998
+++ linux/fs/ntfs/super.c Fri Aug 7 14:52:27 1998
@@ -32,7 +32,7 @@
int ntfs_fixup_record(ntfs_volume *vol, char *record, char *magic, int
size)
{
int start, count, offset;
- short fixup;
+ unsigned short fixup;

if(!IS_MAGIC(record,magic))
return 0;

Tom

-- 
Tom Eastep	
COMPAQ Computer Corporation
Enterprise Computing Group
Tandem Division
tom.eastep@compaq.com


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