From 409e09c1e55ab448419a3d62cd8a5704312b2172 Mon Sep 17 00:00:00 2001
From: Krishna Srinivas <krishna@minio.io>
Date: Tue, 10 May 2016 13:54:58 +0530
Subject: [PATCH] XL/Selfheal: skip reading from disk if ReadFile had returned
 error. (#1575)

---
 xl-erasure-v1-healfile.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/xl-erasure-v1-healfile.go b/xl-erasure-v1-healfile.go
index ab29b2c5c..0725a18f7 100644
--- a/xl-erasure-v1-healfile.go
+++ b/xl-erasure-v1-healfile.go
@@ -117,6 +117,10 @@ func (xl XL) healFile(volume string, path string) error {
 				// Skip reading if the part needs healing.
 				continue
 			}
+			if reader == nil {
+				// If ReadFile() had returned error, do not read from this disk.
+				continue
+			}
 			_, err = io.ReadFull(reader, enBlocks[index])
 			if err != nil && err != io.ErrUnexpectedEOF {
 				enBlocks[index] = nil