From 800ebb64805bd3bcee0f8d2c15478baf838267de Mon Sep 17 00:00:00 2001
From: Nick Craig-Wood <nick@craig-wood.com>
Date: Thu, 18 Jul 2024 11:19:18 +0100
Subject: [PATCH] protondrive: fix nil pointer crash when when downloading
 native document file

Fixes #7959
---
 backend/protondrive/protondrive.go | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/backend/protondrive/protondrive.go b/backend/protondrive/protondrive.go
index 415db44a8..342cb34b5 100644
--- a/backend/protondrive/protondrive.go
+++ b/backend/protondrive/protondrive.go
@@ -883,7 +883,9 @@ func (o *Object) Storable() bool {
 
 // Open opens the file for read.  Call Close() on the returned io.ReadCloser
 func (o *Object) Open(ctx context.Context, options ...fs.OpenOption) (io.ReadCloser, error) {
-	fs.FixRangeOption(options, *o.originalSize)
+	if o.originalSize != nil {
+		fs.FixRangeOption(options, *o.originalSize)
+	}
 	var offset, limit int64 = 0, -1
 	for _, option := range options { // if the caller passes in nil for options, it will become array of nil
 		switch x := option.(type) {