From 4e2643f318982fc7c31e280d3279d1ca8555dc87 Mon Sep 17 00:00:00 2001
From: Christian Rocha <christian@rocha.is>
Date: Fri, 26 Feb 2021 15:11:23 -0500
Subject: [PATCH] Make sure we pass our mutex by reference

---
 tea.go | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/tea.go b/tea.go
index dde6a56..1ac6504 100644
--- a/tea.go
+++ b/tea.go
@@ -100,7 +100,7 @@ func WithoutCatchPanics() ProgramOption {
 type Program struct {
 	initialModel Model
 
-	mtx sync.Mutex
+	mtx *sync.Mutex
 
 	output          io.Writer // where to send output. this will usually be os.Stdout.
 	input           io.Reader // this will usually be os.Stdin.
@@ -152,6 +152,7 @@ type hideCursorMsg struct{}
 // NewProgram creates a new Program.
 func NewProgram(model Model, opts ...ProgramOption) *Program {
 	p := &Program{
+		mtx:          &sync.Mutex{},
 		initialModel: model,
 		output:       os.Stdout,
 		input:        os.Stdin,
@@ -221,7 +222,7 @@ func (p *Program) Start() error {
 		}()
 	}
 
-	p.renderer = newRenderer(p.output, &p.mtx)
+	p.renderer = newRenderer(p.output, p.mtx)
 
 	// Check if output is a TTY before entering raw mode, hiding the cursor and
 	// so on.