From 7368ec8726086837ed7dc130bbf255142daa49e5 Mon Sep 17 00:00:00 2001
From: "Felipe Ramos (perenecabuto)" <perenecabuto@gmail.com>
Date: Sat, 10 Sep 2016 22:33:06 -0300
Subject: [PATCH] Close exported pin on export failure

---
 host/generic/digitalpin.go | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/host/generic/digitalpin.go b/host/generic/digitalpin.go
index de7dc8b..3894617 100644
--- a/host/generic/digitalpin.go
+++ b/host/generic/digitalpin.go
@@ -43,6 +43,11 @@ func (p *digitalPin) init() error {
 	if p.initialized {
 		return nil
 	}
+	defer func() {
+		if !p.initialized {
+			p.unexport()
+		}
+	}()
 
 	var err error
 	if err = p.export(); err != nil {