From e2d2af3afadb16756347541b7389a229a5f960bc Mon Sep 17 00:00:00 2001
From: waynewyang <wayne.yang@arsyun.com>
Date: Wed, 10 Jun 2020 20:34:04 +0800
Subject: [PATCH] error check

---
 cli/chain.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/cli/chain.go b/cli/chain.go
index 9d6856dd2..0bf7741cb 100644
--- a/cli/chain.go
+++ b/cli/chain.go
@@ -883,6 +883,9 @@ var slashConsensusFault = &cli.Command{
 			BlockHeader1: bh1,
 			BlockHeader2: bh2,
 		})
+		if err != nil {
+			return err
+		}
 
 		if cctx.String("miner") == "" {
 			return xerrors.Errorf("--miner flag is required")