sd-event: use _cleanup_ to manage temporary references

diff --git a/src/libelogind/sd-event/sd-event.c b/src/libelogind/sd-event/sd-event.c
index 7355921d302f53ed0b75a08b6f8293819a3e00e6..eda32f671a921b7b712f4f4524b8e7a14e70c708 100644 (file)
--- a/src/libelogind/sd-event/sd-event.c
+++ b/src/libelogind/sd-event/sd-event.c
@@ -2403,6 +2403,7 @@ static int event_prepare(sd_event *e) {
 
 static int dispatch_exit(sd_event *e) {
         sd_event_source *p;
+        _cleanup_(sd_event_unrefp) sd_event *ref = NULL;
         int r;
 
         assert(e);
@@ -2413,15 +2414,11 @@ static int dispatch_exit(sd_event *e) {
                 return 0;
         }
 
-        sd_event_ref(e);
+        ref = sd_event_ref(e);
         e->iteration++;
         e->state = SD_EVENT_EXITING;
-
         r = source_dispatch(p);
-
         e->state = SD_EVENT_INITIAL;
-        sd_event_unref(e);
-
         return r;
 }
 
@@ -2661,14 +2658,12 @@ _public_ int sd_event_dispatch(sd_event *e) {
 
         p = event_next_pending(e);
         if (p) {
-                sd_event_ref(e);
+                _cleanup_(sd_event_unrefp) sd_event *ref = NULL;
 
+                ref = sd_event_ref(e);
                 e->state = SD_EVENT_RUNNING;
                 r = source_dispatch(p);
                 e->state = SD_EVENT_INITIAL;
-
-                sd_event_unref(e);
-
                 return r;
         }
 
@@ -2735,6 +2730,7 @@ _public_ int sd_event_run(sd_event *e, uint64_t timeout) {
 }
 
 _public_ int sd_event_loop(sd_event *e) {
+        _cleanup_(sd_event_unrefp) sd_event *ref = NULL;
         int r;
 
         assert_return(e, -EINVAL);
@@ -2742,19 +2738,15 @@ _public_ int sd_event_loop(sd_event *e) {
         assert_return(!event_pid_changed(e), -ECHILD);
         assert_return(e->state == SD_EVENT_INITIAL, -EBUSY);
 
-        sd_event_ref(e);
+        ref = sd_event_ref(e);
 
         while (e->state != SD_EVENT_FINISHED) {
                 r = sd_event_run(e, (uint64_t) -1);
                 if (r < 0)
-                        goto finish;
+                        return r;
         }
 
-        r = e->exit_code;
-
-finish:
-        sd_event_unref(e);
-        return r;
+        return e->exit_code;
 }
 
 _public_ int sd_event_get_fd(sd_event *e) {