From b28acda22db49a5e5ff39f3c23968b02a3585dda Mon Sep 17 00:00:00 2001
From: Alisdair MacLeod <git@alisdairmacleod.co.uk>
Date: Thu, 19 Mar 2020 09:32:08 +0000
Subject: [PATCH] fix race condition in entry

---
 entry.go | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/entry.go b/entry.go
index 1bf127c..3928671 100644
--- a/entry.go
+++ b/entry.go
@@ -219,6 +219,8 @@ func (entry Entry) HasCaller() (has bool) {
 // This function is not declared with a pointer value because otherwise
 // race conditions will occur when using multiple goroutines
 func (entry Entry) log(level Level, msg string) {
+	entry.Logger.mu.Lock()
+	defer entry.Logger.mu.Unlock()
 	var buffer *bytes.Buffer
 
 	// Default to now, but allow users to override if they want.