btrfs: Fix possible off-by-one in btrfs_search_path_in_tree

[pandora-kernel.git] / fs / btrfs / ioctl.c

diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 231fbe1..205d588 100644 (file)
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -1751,7 +1751,7 @@ static noinline int btrfs_search_path_in_tree(struct btrfs_fs_info *info,
        if (!path)
                return -ENOMEM;
 
-       ptr = &name[BTRFS_INO_LOOKUP_PATH_MAX];
+       ptr = &name[BTRFS_INO_LOOKUP_PATH_MAX - 1];
 
        key.objectid = tree_id;
        key.type = BTRFS_ROOT_ITEM_KEY;