From 0c2c289d4c833e3f54d515f98c7e1fc0f64655e6 Mon Sep 17 00:00:00 2001
From: Derek McGowan <derek@mcg.dev>
Date: Fri, 7 Jan 2022 12:19:23 -0800
Subject: [PATCH] Fix seek error used without nil check

Signed-off-by: Derek McGowan <derek@mcg.dev>
---
 content/helpers.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/content/helpers.go b/content/helpers.go
index fb078d46e..3ec1ffce0 100644
--- a/content/helpers.go
+++ b/content/helpers.go
@@ -212,6 +212,9 @@ func seekReader(r io.Reader, offset, size int64) (io.Reader, error) {
 	if ok {
 		nn, err := seeker.Seek(offset, io.SeekStart)
 		if nn != offset {
+			if err == nil {
+				err = fmt.Errorf("unexpected seek location without seek error")
+			}
 			return nil, fmt.Errorf("failed to seek to offset %v: %w", offset, err)
 		}