From 0d34b4519cbdf65b4bbaa2eff6894d27a6ffaeba Mon Sep 17 00:00:00 2001
From: Martin Ling <martin-git@earth.li>
Date: Mon, 4 Nov 2013 00:00:05 +0000
Subject: [PATCH] Fix enumeration on OS X.

---
 serialport.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/serialport.c b/serialport.c
index b47ddd9..7022a9d 100644
--- a/serialport.c
+++ b/serialport.c
@@ -205,7 +205,7 @@ out_done:
 	CFDictionarySetValue(classes,
 			CFSTR(kIOSerialBSDTypeKey), CFSTR(kIOSerialBSDAllTypes));
 
-	if (!(IOServiceGetMatchingServices(master, classes, &iter)))
+	if (IOServiceGetMatchingServices(master, classes, &iter) != KERN_SUCCESS)
 	{
 		ret = SP_ERR_FAIL;
 		goto out_done;