From 9f908ce67f91c6ef0214b567357f2100df7d1e23 Mon Sep 17 00:00:00 2001
From: Xiang Li <xiangli.cs@gmail.com>
Date: Tue, 1 Dec 2015 14:55:20 -0800
Subject: [PATCH] storage: add missing return for unsafeAddWatching

---
 storage/watchable_store.go | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/storage/watchable_store.go b/storage/watchable_store.go
index 09b5b5ff2..ebad2a64d 100644
--- a/storage/watchable_store.go
+++ b/storage/watchable_store.go
@@ -385,8 +385,9 @@ func unsafeAddWatching(synced *map[string]map[*watching]struct{}, k string, wa *
 		} else {
 			v[wa] = struct{}{}
 		}
-
+		return nil
 	}
+
 	mp[k] = make(map[*watching]struct{})
 	mp[k][wa] = struct{}{}
 	return nil