From 296ae4305fa224c285d7ee8c1d8facbb7f28ecfc Mon Sep 17 00:00:00 2001
From: duzy555666 <965876239@qq.com>
Date: Mon, 28 Feb 2022 16:51:15 +0800
Subject: [PATCH] avoid panic

---
 cmd/lotus-miner/sealing.go | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/cmd/lotus-miner/sealing.go b/cmd/lotus-miner/sealing.go
index 16b02f7bbe0..2f97c1e073c 100644
--- a/cmd/lotus-miner/sealing.go
+++ b/cmd/lotus-miner/sealing.go
@@ -39,9 +39,12 @@ func barString(total, y, g float64) string {
 	yBars := int(math.Round(y / total * barCols))
 	gBars := int(math.Round(g / total * barCols))
 	eBars := int(barCols) - yBars - gBars
-	return color.YellowString(strings.Repeat("|", yBars)) +
-		color.GreenString(strings.Repeat("|", gBars)) +
-		strings.Repeat(" ", eBars)
+	var barString = color.YellowString(strings.Repeat("|", yBars)) +
+		color.GreenString(strings.Repeat("|", gBars))
+	if eBars >= 0 {
+		barString += strings.Repeat(" ", eBars)
+	}
+	return barString
 }
 
 var sealingWorkersCmd = &cli.Command{