silence warning

diff --git a/servers/slapd/back-bdb/cache.c b/servers/slapd/back-bdb/cache.c
index 30959448d377c26ea240f8c7f77252de5c7e8133..826459506076613333e12a5934cea9d6f1213130 100644 (file)
--- a/servers/slapd/back-bdb/cache.c
+++ b/servers/slapd/back-bdb/cache.c
@@ -619,6 +619,8 @@ bdb_cache_lru_purge(void *ctx, void *arg)
                ldap_pvt_runqueue_resched( &slapd_rq, rtask, 1 );
                ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
        }
+
+       return NULL;
 }
 
 /* caller must have lru_head_mutex locked. mutex