diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 0b3167bd9f35..3fca9f9e3b5d 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -4431,6 +4431,10 @@ static int btrfs_check_uuid_tree_entry(struct btrfs_fs_info *fs_info, ret = 1; goto out; } + if (!btrfs_grab_fs_root(subvol_root)) { + ret = 1; + goto out; + } switch (type) { case BTRFS_UUID_KEY_SUBVOL: @@ -4443,7 +4447,7 @@ static int btrfs_check_uuid_tree_entry(struct btrfs_fs_info *fs_info, ret = 1; break; } - + btrfs_put_fs_root(subvol_root); out: return ret; }