From 910c01a091b777940f342a3bc4ed1bcd45c8e122 Mon Sep 17 00:00:00 2001
From: Paul Walker <paul@pwjw.com>
Date: Wed, 20 Mar 2024 18:29:45 -0400
Subject: [PATCH] Fix a CFStringRef leak in RTMidi Port Name

In certain circumstances when building a compound port name
(for instance, with an IAC bus), the string math to concatenate
the bus and driver does not release one of the source strings,
causing a CFStringRef leak on macOS.

This fixes it by doing the appropriate CFRelease after string
concatenation.
---
 RtMidi.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/RtMidi.cpp b/RtMidi.cpp
index 0c3dcbe..3e91487 100644
--- a/RtMidi.cpp
+++ b/RtMidi.cpp
@@ -1376,6 +1376,7 @@ CFStringRef CreateEndpointName( MIDIEndpointRef endpoint, bool isExternal )
           CFStringInsert( result, 0, CFSTR(" ") );
 
         CFStringInsert( result, 0, str );
+        CFRelease(str);
       }
     }
   }