From 224a272cf2c96c3da5ec15f6c10ca68cf82f4d21 Mon Sep 17 00:00:00 2001
From: Aditya Manthramurthy <donatello@users.noreply.github.com>
Date: Sun, 29 Jul 2018 02:30:37 -0700
Subject: [PATCH] Fix type of bitrot mismatch error (#6205)

The error type `hashMismatchError` is lost when the error is received
from a remote disk.

Fixes #6201
---
 cmd/xl-v1-healing-common.go | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/cmd/xl-v1-healing-common.go b/cmd/xl-v1-healing-common.go
index f0c8077df..d7e42eed7 100644
--- a/cmd/xl-v1-healing-common.go
+++ b/cmd/xl-v1-healing-common.go
@@ -19,6 +19,7 @@ package cmd
 import (
 	"context"
 	"path/filepath"
+	"strings"
 	"time"
 
 	"github.com/minio/minio/cmd/logger"
@@ -175,7 +176,10 @@ func disksWithAllParts(ctx context.Context, onlineDisks []StorageAPI, partsMetad
 			// buffer is passed
 			_, hErr := onlineDisk.ReadFile(bucket, partPath, 0, buffer, verifier)
 
-			_, isCorrupt := hErr.(hashMismatchError)
+			isCorrupt := false
+			if hErr != nil {
+				isCorrupt = strings.HasPrefix(hErr.Error(), "Bitrot verification mismatch - expected ")
+			}
 			switch {
 			case isCorrupt:
 				fallthrough