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Btrfs: fix double free in the iterate_extent_inodes()

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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>
This commit is contained in:
Wang Shilong
2013-03-31 10:36:37 +00:00
committed by Josef Bacik
parent f172393952
commit 5c2d867fdc
1 changed files with 0 additions and 2 deletions
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2
fs/btrfs/backref.c
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@@ -1510,11 +1510,9 @@ int iterate_extent_inodes(struct btrfs_fs_info *fs_info,
iterate, ctx); iterate, ctx);
} }
ulist_free(roots); ulist_free(roots);
roots = NULL;
} }
free_leaf_list(refs); free_leaf_list(refs);
ulist_free(roots);
out: out:
if (!search_commit_root) { if (!search_commit_root) {
btrfs_put_tree_mod_seq(fs_info, &tree_mod_seq_elem); btrfs_put_tree_mod_seq(fs_info, &tree_mod_seq_elem);