From 2bdf2ac12d3fc2770cd101cc30c221255a7fdff6 Mon Sep 17 00:00:00 2001
From: Luke Shumaker <lukeshu@lukeshu.com>
Date: Sun, 2 Apr 2023 21:11:23 -0600
Subject: btrfsutil: noopRebuiltForrestCallbacks: Add a missing failure-check

---
 lib/btrfsutil/rebuilt_forrest.go | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'lib')

diff --git a/lib/btrfsutil/rebuilt_forrest.go b/lib/btrfsutil/rebuilt_forrest.go
index 60f3010..fcfb353 100644
--- a/lib/btrfsutil/rebuilt_forrest.go
+++ b/lib/btrfsutil/rebuilt_forrest.go
@@ -47,6 +47,9 @@ func (cb noopRebuiltForrestCallbacks) LookupRoot(ctx context.Context, tree btrfs
 		key.Offset = 0
 		return tgt.Compare(key)
 	})
+	if !ok {
+		return 0, btrfsitem.Root{}, false
+	}
 	itemBody := cb.forrest.readItem(ctx, itemPtr)
 	defer itemBody.Free()
 	switch itemBody := itemBody.(type) {
-- 
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