From 8d2002f4ed923703ceafa20a9aa790bb3f083986 Mon Sep 17 00:00:00 2001
From: Andrew Madsen <andrew@mixedinkey.com>
Date: Fri, 6 Nov 2015 15:47:20 -0700
Subject: [PATCH] Issue #106: Fixed exception thrown by
 MIKMIDIConnectionManager when unplugging virtual MIDI device.

---
 Source/MIKMIDIConnectionManager.m | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Source/MIKMIDIConnectionManager.m b/Source/MIKMIDIConnectionManager.m
index c8449bf5..6f85ec12 100644
--- a/Source/MIKMIDIConnectionManager.m
+++ b/Source/MIKMIDIConnectionManager.m
@@ -358,7 +358,7 @@ - (NSString *)deviceNameFromVirtualEndpoint:(MIKMIDIEndpoint *)endpoint
 - (MIKMIDIDevice *)deviceContainingEndpoint:(MIKMIDIEndpoint *)endpoint
 {
 	if (!endpoint) return nil;
-	NSMutableSet *devices = [self.availableDevices mutableCopy];
+	NSMutableSet *devices = [NSMutableSet setWithArray:self.availableDevices];
 	[devices unionSet:self.connectedDevices];
 	for (MIKMIDIDevice *device in devices) {
 		NSMutableSet *deviceEndpoints = [NSMutableSet setWithArray:[device.entities valueForKeyPath:@"@distinctUnionOfArrays.sources"]];