From 37e9419bf4f2f905a0aeeed2bf500c8b9be29da2 Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Mon, 10 Sep 2012 10:12:10 +0200
Subject: [PATCH] unit: don't allow units to be gc'ed that still are
 referenced via UnitRef (cherry picked from commit
 9d576438a1ee932bde1fb0f1be1aa5cae646fd4e)

---
 src/core/unit.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/core/unit.c b/src/core/unit.c
index b810f8f..5865405 100644
--- a/src/core/unit.c
+++ b/src/core/unit.c
@@ -256,6 +256,9 @@ bool unit_check_gc(Unit *u) {
         if (unit_active_state(u) != UNIT_INACTIVE)
                 return true;
 
+        if (u->refs)
+                return true;
+
         if (UNIT_VTABLE(u)->check_gc)
                 if (UNIT_VTABLE(u)->check_gc(u))
                         return true;