From 2d5b3927d11ef7c3182344450b8abaa5b7b17d1c Mon Sep 17 00:00:00 2001
From: Andrew Cady <d@jerkface.net>
Date: Mon, 5 Jun 2023 18:54:29 -0400
Subject: fail earlier when run without root privilege

---
 list-all-subvolumes | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/list-all-subvolumes b/list-all-subvolumes
index 7bc44d2..b851a9b 100755
--- a/list-all-subvolumes
+++ b/list-all-subvolumes
@@ -9,7 +9,7 @@ list_all_subvolumes()
         [ -b "$dev" ] || return
         d=/run/btrfs-temp-mount/$(systemd-escape "$dev")
         (
-            mkdir -p "$d"
+            mkdir -p "$d" || exit
             trap 'umount "$d"; rmdir "$d"' EXIT
             set -x
             mountpoint -q "$d" || mount -o ro,subvol=/ "$dev" "$d" || return
-- 
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