From b66aa07a4da8c61fd6fe5b9a31294accfaf7874c Mon Sep 17 00:00:00 2001
From: Matt Joiner <anacrolix@gmail.com>
Date: Fri, 11 Dec 2015 03:05:40 +1100
Subject: [PATCH] data/pieceStore: Improve error message when pieces fail to
 write

---
 data/pieceStore/store.go | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/data/pieceStore/store.go b/data/pieceStore/store.go
index c73cd785..e15c2c3d 100644
--- a/data/pieceStore/store.go
+++ b/data/pieceStore/store.go
@@ -5,6 +5,7 @@ import (
 	"crypto/sha1"
 	"encoding/hex"
 	"errors"
+	"fmt"
 	"io"
 	"log"
 	"os"
@@ -143,6 +144,7 @@ func (me *store) pieceWriteAt(p metainfo.Piece, b []byte, off int64) (n int, err
 	}()
 	f, err := me.db.Open(me.incompletePiecePath(p), os.O_WRONLY|os.O_CREATE)
 	if err != nil {
+		err = fmt.Errorf("error opening %q: %s", me.incompletePiecePath(p), err)
 		return
 	}
 	defer func() {
-- 
2.48.1