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mst.c: Fix mixed native/little-endian usage of variable 'usn'.

edge.strict_endians
Erik Larsson 2016-01-25 11:30:13 +01:00
parent 84f042e739
commit 8aa2769d70
1 changed files with 4 additions and 3 deletions
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7
libntfs-3g/mst.c
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@ -157,6 +157,7 @@ int ntfs_mst_post_read_fixup(NTFS_RECORD *b, const u32 size)
int ntfs_mst_pre_write_fixup(NTFS_RECORD *b, const u32 size)
{
u16 usa_ofs, usa_count, usn;
le16 le_usn;
le16 *usa_pos, *data_pos;
ntfs_log_trace("Entering\n");
@ -189,8 +190,8 @@ int ntfs_mst_pre_write_fixup(NTFS_RECORD *b, const u32 size)
usn = le16_to_cpup(usa_pos) + 1;
if (usn == 0xffff || !usn)
usn = 1;
usn = cpu_to_le16(usn);
*usa_pos = usn;
le_usn = cpu_to_le16(usn);
*usa_pos = le_usn;
/* Position in data of first le16 that needs fixing up. */
data_pos = (le16*)b + NTFS_BLOCK_SIZE/sizeof(le16) - 1;
/* Fixup all sectors. */
@ -201,7 +202,7 @@ int ntfs_mst_pre_write_fixup(NTFS_RECORD *b, const u32 size)
*/
*(++usa_pos) = *data_pos;
/* Apply fixup to data. */
*data_pos = usn;
*data_pos = le_usn;
/* Increment position in data as well. */
data_pos += NTFS_BLOCK_SIZE/sizeof(le16);
}