btrfs: fix unbalanced unlock in qgroup_account_snapshot()

qgroup_account_snapshot() is trying to unlock the not taken
tree_log_mutex in a error path. Since ret != 0 in this case, we can
just return from here.

Fixes: 2a4d84c11a ("btrfs: move delayed ref flushing for qgroup into qgroup helper")
CC: stable@vger.kernel.org # 5.12+
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Naohiro Aota 2021-06-21 10:21:14 +09:00 committed by David Sterba
parent da658b5708
commit 44365827cc

View File

@ -1478,7 +1478,7 @@ static int qgroup_account_snapshot(struct btrfs_trans_handle *trans,
ret = btrfs_run_delayed_refs(trans, (unsigned long)-1);
if (ret) {
btrfs_abort_transaction(trans, ret);
goto out;
return ret;
}
/*