From: paladz <453256728@qq.com>
Date: Fri, 26 Apr 2019 02:05:05 +0000 (+0800)
Subject: fix the bug
X-Git-Tag: 2.0.0-alpha~80^2^2
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=9d66bb4187fc6e32e5da703875f9c14f6f0b8abb;p=bytom%2Fbytom.git

fix the bug
---

diff --git a/mining/miningpool/miningpool.go b/mining/miningpool/miningpool.go
index 1e6eb894..c6906c24 100644
--- a/mining/miningpool/miningpool.go
+++ b/mining/miningpool/miningpool.go
@@ -94,6 +94,10 @@ func (m *MiningPool) GetWork() (*types.BlockHeader, error) {
 
 // SubmitWork will try to submit the result to the blockchain
 func (m *MiningPool) SubmitWork(bh *types.BlockHeader) error {
+	if bh == nil {
+		return errors.New("can't submit empty block")
+	}
+
 	reply := make(chan error, 1)
 	m.submitCh <- &submitBlockMsg{blockHeader: bh, reply: reply}
 	err := <-reply