From b8018297a826c2fc3aecec3ab55186d606d5a0d6 Mon Sep 17 00:00:00 2001
From: Mike Yuan <me@yhndnzj.com>
Date: Sun, 25 Aug 2024 20:18:58 +0200
Subject: [PATCH] path-lookup: shortcut patch_root_prefix() if no root_dir

---
 src/libsystemd/sd-path/path-lookup.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/libsystemd/sd-path/path-lookup.c b/src/libsystemd/sd-path/path-lookup.c
index d37da14ec6..673a255685 100644
--- a/src/libsystemd/sd-path/path-lookup.c
+++ b/src/libsystemd/sd-path/path-lookup.c
@@ -342,6 +342,9 @@ static int patch_root_prefix(char **p, const char *root_dir) {
 
         assert(p);
 
+        if (!root_dir)
+                return 0;
+
         if (!*p)
                 return 0;