bus: when we _unref() a NULL pointer, don't use assert_return()

We support unreffing NULL pointers just fine and we shouldn't pay the
_unlikely_() price for it, not get a debug message if we do, hence let's
not use assert_return() here.

1 files changed, 6 insertions, 2 deletions

diff --git a/src/libsystemd-bus/sd-event.c b/src/libsystemd-bus/sd-event.c
index b5ddf71ebe..282e9145e7 100644
--- a/src/libsystemd-bus/sd-event.c
+++ b/src/libsystemd-bus/sd-event.c
@@ -384,7 +384,9 @@ _public_ sd_event* sd_event_ref(sd_event *e) {
 }
 
 _public_ sd_event* sd_event_unref(sd_event *e) {
-        assert_return(e, NULL);
+
+        if (!e)
+                return NULL;
 
         assert(e->n_ref >= 1);
         e->n_ref--;
@@ -973,7 +975,9 @@ _public_ sd_event_source* sd_event_source_ref(sd_event_source *s) {
 }
 
 _public_ sd_event_source* sd_event_source_unref(sd_event_source *s) {
-        assert_return(s, NULL);
+
+        if (!s)
+                return NULL;
 
         assert(s->n_ref >= 1);
         s->n_ref--;