1 files changed, 3 insertions, 1 deletions
diff --git a/src/lib/rib.c b/src/lib/rib.c
index bbe996e7..9e45a302 100644
--- a/src/lib/rib.c
+++ b/src/lib/rib.c
@@ -788,7 +788,7 @@ static struct rib_sub * rib_get_sub(uint32_t sid)
                         return r;
         }
 
-        return 0;
+        return NULL;
 }
 
 static struct rib_sub * rib_sub_create(uint32_t sid)
@@ -1140,6 +1140,8 @@ int rib_event_wait(ro_set_t *              set,
 
         sub = rib_get_sub(set->sid);
 
+        assert(sub);
+
         pthread_rwlock_unlock(&rib.lock);
 
         pthread_mutex_lock(&sub->lock);