From 382f6365fd2af6329c0b80796a99f1127cf4ae11 Mon Sep 17 00:00:00 2001
From: Hajime Hoshi <hajimehoshi@gmail.com>
Date: Fri, 4 Oct 2019 01:52:27 +0900
Subject: [PATCH] shareable: Avoid defer for performance

---
 internal/shareable/image.go | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/internal/shareable/image.go b/internal/shareable/image.go
index 3a990afc0..84848a036 100644
--- a/internal/shareable/image.go
+++ b/internal/shareable/image.go
@@ -388,8 +388,9 @@ func (i *Image) replacePixels(p []byte) {
 
 func (i *Image) At(x, y int) (byte, byte, byte, byte) {
 	backendsM.Lock()
-	defer backendsM.Unlock()
-	return i.at(x, y)
+	r, g, b, a := i.at(x, y)
+	backendsM.Unlock()
+	return r, g, b, a
 }
 
 func (i *Image) at(x, y int) (byte, byte, byte, byte) {