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| author | Wang Shilong <wangsl-fnst@cn.fujitsu.com> | 2013-03-31 12:36:37 +0200 |
|---|---|---|
| committer | Josef Bacik <jbacik@fusionio.com> | 2013-05-06 21:54:31 +0200 |
| commit | 5c2d867fdcbc11a6862379ebd60b2c1a66e13671 (patch) | |
| tree | a2bc4d269f91e709fb79d9a7ac30375c0a97e334 /fs/btrfs/backref.c | |
| parent | Btrfs: kill some BUG_ONs() in the find_parent_nodes() (diff) | |
| download | linux-5c2d867fdcbc11a6862379ebd60b2c1a66e13671.tar.xz linux-5c2d867fdcbc11a6862379ebd60b2c1a66e13671.zip | |
Btrfs: fix double free in the iterate_extent_inodes()
If btrfs_find_all_roots() fails, 'roots' has been freed or 'roots'
fails to allocate. We don't need to free it outside btrfs_find_all_roots()
again.Fix it.
Signed-off-by: Wang Shilong <wangsl-fnst@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Diffstat (limited to 'fs/btrfs/backref.c')
| -rw-r--r-- | fs/btrfs/backref.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c index 3dd0693bad78..ba0fee7c3237 100644 --- a/fs/btrfs/backref.c +++ b/fs/btrfs/backref.c @@ -1510,11 +1510,9 @@ int iterate_extent_inodes(struct btrfs_fs_info *fs_info, iterate, ctx); } ulist_free(roots); - roots = NULL; } free_leaf_list(refs); - ulist_free(roots); out: if (!search_commit_root) { btrfs_put_tree_mod_seq(fs_info, &tree_mod_seq_elem); |