1 files changed, 7 insertions, 4 deletions
diff --git a/src/libsystemd/sd-bus/bus-slot.c b/src/libsystemd/sd-bus/bus-slot.c
index b149ea16da..8e9074c7df 100644
--- a/src/libsystemd/sd-bus/bus-slot.c
+++ b/src/libsystemd/sd-bus/bus-slot.c
@@ -1,5 +1,3 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
 /***
   This file is part of systemd.
 
@@ -20,9 +18,12 @@
 ***/
 
 #include "sd-bus.h"
+
+#include "alloc-util.h"
 #include "bus-control.h"
 #include "bus-objects.h"
 #include "bus-slot.h"
+#include "string-util.h"
 
 sd_bus_slot *bus_slot_allocate(
                 sd_bus *bus,
@@ -54,7 +55,9 @@ sd_bus_slot *bus_slot_allocate(
 }
 
 _public_ sd_bus_slot* sd_bus_slot_ref(sd_bus_slot *slot) {
-        assert_return(slot, NULL);
+
+        if (!slot)
+                return NULL;
 
         assert(slot->n_ref > 0);
 
@@ -203,7 +206,7 @@ _public_ sd_bus_slot* sd_bus_slot_unref(sd_bus_slot *slot) {
         assert(slot->n_ref > 0);
 
         if (slot->n_ref > 1) {
-                slot->n_ref --;
+                slot->n_ref--;
                 return NULL;
         }