From d1080d54569f38f080c0abf4f70ea82afeaada90 Mon Sep 17 00:00:00 2001
From: Nick Craig-Wood <nick@craig-wood.com>
Date: Sat, 5 Nov 2016 10:01:33 +0000
Subject: [PATCH] crypt: fix panic on close after failed seek

---
 crypt/cipher.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/crypt/cipher.go b/crypt/cipher.go
index 909712767..58a81c71a 100644
--- a/crypt/cipher.go
+++ b/crypt/cipher.go
@@ -714,6 +714,9 @@ func (fh *decrypter) Close() error {
 	}
 	// Show file now closed
 	fh.err = ErrorFileClosed
+	if fh.rc == nil {
+		return nil
+	}
 	return fh.rc.Close()
 }