diff options
| -rw-r--r-- | fs/btrfs/ctree.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c index e2e43c07f6b1..3b767d2b68e8 100644 --- a/fs/btrfs/ctree.c +++ b/fs/btrfs/ctree.c @@ -333,7 +333,11 @@ static noinline int update_ref_for_cow(struct btrfs_trans_handle *trans, buf->len, &refs, &flags); if (ret) return ret; - BUG_ON(refs == 0); + if (refs == 0) { + ret = -EROFS; + btrfs_std_error(root->fs_info, ret); + return ret; + } } else { refs = 1; if (root->root_key.objectid == BTRFS_TREE_RELOC_OBJECTID || |