From 22cac33fe7573d1bd3ee1751d5e8532b1d63fcf5 Mon Sep 17 00:00:00 2001
From: Brad Fitzpatrick <bradfitz@tailscale.com>
Date: Sun, 11 Jul 2021 19:53:23 -0700
Subject: [PATCH] ipn: remove an unnecessary lazy map init on read path

It's okay to read from a nil map.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
---
 ipn/store.go | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/ipn/store.go b/ipn/store.go
index acce235d2..9d5b5829e 100644
--- a/ipn/store.go
+++ b/ipn/store.go
@@ -67,9 +67,6 @@ func (s *MemoryStore) String() string { return "MemoryStore" }
 func (s *MemoryStore) ReadState(id StateKey) ([]byte, error) {
 	s.mu.Lock()
 	defer s.mu.Unlock()
-	if s.cache == nil {
-		s.cache = map[StateKey][]byte{}
-	}
 	bs, ok := s.cache[id]
 	if !ok {
 		return nil, ErrStateNotExist