Wang Shilong
2013-Mar-29 13:05 UTC
[PATCH] Btrfs: fix double free in the iterate_extent_inodes()
From: Wang Shilong <wangsl-fnst@cn.fujitsu.com>
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>
---
fs/btrfs/backref.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c
index 5ff46ee..3ca413bb 100644
--- a/fs/btrfs/backref.c
+++ b/fs/btrfs/backref.c
@@ -1514,7 +1514,6 @@ int iterate_extent_inodes(struct btrfs_fs_info *fs_info,
}
free_leaf_list(refs);
- ulist_free(roots);
out:
if (!search_commit_root) {
btrfs_put_tree_mod_seq(fs_info, &tree_mod_seq_elem);
--
1.7.11.7
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