fix #626

diff --git a/cmd/miner/main.go b/cmd/miner/main.go
index f33911b..52a690c 100644 (file)
--- a/cmd/miner/main.go
+++ b/cmd/miner/main.go
@@ -3,7 +3,7 @@ package main
 import (
        "encoding/json"
        "log"
-       // "os"
+       "os"
 
        "github.com/bytom/api"
        "github.com/bytom/consensus/difficulty"
@@ -54,6 +54,9 @@ func getBlockHeaderByHeight(height uint64) {
 
 func main() {
        data, _ := util.ClientCall("/get-work", nil)
+       if data == nil {
+               os.Exit(1)
+       }
        rawData, err := json.Marshal(data)
        if err != nil {
                log.Fatalln(err)