From 7d0d53c6a390dfbdb803ea635ef61e80588063a8 Mon Sep 17 00:00:00 2001
From: Frank Meerkoetter <frank.meerkoetter@basyskom.com>
Date: Sat, 30 Apr 2016 21:08:41 +0200
Subject: Avoid allocating a string by using a QStringRef

Change-Id: I01693dcdbd8a0e99a2845d16676c4e9302d244e6
Reviewed-by: Denis Shienkov <denis.shienkov@gmail.com>
---
 src/serialport/qserialportinfo_unix.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/serialport/qserialportinfo_unix.cpp b/src/serialport/qserialportinfo_unix.cpp
index 475aeb4..8f39045 100644
--- a/src/serialport/qserialportinfo_unix.cpp
+++ b/src/serialport/qserialportinfo_unix.cpp
@@ -149,7 +149,7 @@ static bool isRfcommDevice(const QString &portName)
         return false;
 
     bool ok;
-    const int portNumber = portName.mid(6).toInt(&ok);
+    const int portNumber = portName.midRef(6).toInt(&ok);
     if (!ok || (portNumber < 0) || (portNumber > 255))
         return false;
     return true;
-- 
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