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| author | Anton Altaparmakov <aia21@cantab.net> | 2005-09-08 19:52:31 +0400 |
|---|---|---|
| committer | Anton Altaparmakov <aia21@cantab.net> | 2005-09-08 19:52:31 +0400 |
| commit | 2b0ada2b8e086c267dd116a39ad41ff0a717b665 (patch) | |
| tree | 37bf95af38d5a829edb322663d26df69a1287b94 /fs | |
| parent | 8bb735216a0675e247bbe8b8b92c09d6884d1a17 (diff) | |
| download | linux-2b0ada2b8e086c267dd116a39ad41ff0a717b665.tar.xz | |
NTFS: Fix handling of valid but empty mapping pairs array in
fs/ntfs/runlist.c::ntfs_mapping_pairs_decompress().
Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/ntfs/ChangeLog | 2 | ||||
| -rw-r--r-- | fs/ntfs/runlist.c | 3 |
2 files changed, 5 insertions, 0 deletions
diff --git a/fs/ntfs/ChangeLog b/fs/ntfs/ChangeLog index f4c27f7c1b6a..8fe38c801166 100644 --- a/fs/ntfs/ChangeLog +++ b/fs/ntfs/ChangeLog @@ -46,6 +46,8 @@ ToDo/Notes: - Fix two nasty runlist merging bugs that had gone unnoticed so far. Thanks to Stefano Picerno for the bug report. - Remove two bogus BUG_ON()s from fs/ntfs/mft.c. + - Fix handling of valid but empty mapping pairs array in + fs/ntfs/runlist.c::ntfs_mapping_pairs_decompress(). 2.1.23 - Implement extension of resident files and make writing safe as well as many bug fixes, cleanups, and enhancements... diff --git a/fs/ntfs/runlist.c b/fs/ntfs/runlist.c index d26a1be530c5..e4c4716939de 100644 --- a/fs/ntfs/runlist.c +++ b/fs/ntfs/runlist.c @@ -760,6 +760,9 @@ runlist_element *ntfs_mapping_pairs_decompress(const ntfs_volume *vol, ntfs_error(vol->sb, "Corrupt attribute."); return ERR_PTR(-EIO); } + /* If the mapping pairs array is valid but empty, nothing to do. */ + if (!vcn && !*buf) + return old_rl; /* Current position in runlist array. */ rlpos = 0; /* Allocate first page and set current runlist size to one page. */ |