From 6085517433f155a5dda1445f1fb06f9550a90527 Mon Sep 17 00:00:00 2001
From: Cristian Maglie <c.maglie@bug.st>
Date: Sun, 19 Aug 2018 18:41:24 +0200
Subject: [PATCH] Made error variable explicit in search loop

---
 enumerator/usb_go1.10_darwin.go | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/enumerator/usb_go1.10_darwin.go b/enumerator/usb_go1.10_darwin.go
index 2ac257c..cf19fe3 100644
--- a/enumerator/usb_go1.10_darwin.go
+++ b/enumerator/usb_go1.10_darwin.go
@@ -48,12 +48,13 @@ func extractPortInfo(service C.io_registry_entry_t) (*PortDetails, error) {
 	port.IsUSB = false
 
 	usbDevice := service
+	var searchErr error
 	for usbDevice.GetClass() != "IOUSBDevice" {
-		if usbDevice, err = usbDevice.GetParent("IOService"); err != nil {
+		if usbDevice, searchErr = usbDevice.GetParent("IOService"); searchErr != nil {
 			break
 		}
 	}
-	if err == nil {
+	if searchErr == nil {
 		// It's an IOUSBDevice
 		vid, _ := usbDevice.GetIntProperty("idVendor", C.kCFNumberSInt16Type)
 		pid, _ := usbDevice.GetIntProperty("idProduct", C.kCFNumberSInt16Type)