core: serialize/deserialize bus subscribers

[elogind.git] / src / core / unit.c

diff --git a/src/core/unit.c b/src/core/unit.c
index 991111ab31facaad6fcf4c8f9e29f7ca41e3986e..70cdd3d943dbcabc91e38d63343793566fd1f77c 100644 (file)
--- a/src/core/unit.c
+++ b/src/core/unit.c
@@ -231,8 +231,13 @@ int unit_set_description(Unit *u, const char *description) {
 
         assert(u);
 
-        if (!(s = strdup(description)))
-                return -ENOMEM;
+        if (isempty(description))
+                s = NULL;
+        else {
+                s = strdup(description);
+                if (!s)
+                        return -ENOMEM;
+        }
 
         free(u->description);
         u->description = s;
@@ -306,9 +311,6 @@ void unit_add_to_gc_queue(Unit *u) {
         u->in_gc_queue = true;
 
         u->manager->n_in_gc_queue ++;
-
-        if (u->manager->gc_queue_timestamp <= 0)
-                u->manager->gc_queue_timestamp = now(CLOCK_MONOTONIC);
 }
 
 void unit_add_to_dbus_queue(Unit *u) {
@@ -2126,7 +2128,8 @@ int unit_serialize(Unit *u, FILE *f, FDSet *fds, bool serialize_jobs) {
         if (!unit_can_serialize(u))
                 return 0;
 
-        if ((r = UNIT_VTABLE(u)->serialize(u, f, fds)) < 0)
+        r = UNIT_VTABLE(u)->serialize(u, f, fds);
+        if (r < 0)
                 return r;