From 6c61e6040ca3336fbc701ce92e5315a295661648 Mon Sep 17 00:00:00 2001
From: Matthew Chen <charlesmchen@gmail.com>
Date: Thu, 13 Jul 2017 18:14:26 -0400
Subject: [PATCH] Fix another call view leak.

// FREEBIE
---
 Signal/src/ViewControllers/CallViewController.swift | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Signal/src/ViewControllers/CallViewController.swift b/Signal/src/ViewControllers/CallViewController.swift
index 4e5ac5714..4fb6ab977 100644
--- a/Signal/src/ViewControllers/CallViewController.swift
+++ b/Signal/src/ViewControllers/CallViewController.swift
@@ -143,8 +143,8 @@ class CallViewController: UIViewController, CallObserver, CallServiceObserver, R
                                                name:NSNotification.Name.UIApplicationDidBecomeActive,
                                                object:nil)
 
-        NotificationCenter.default.addObserver(forName: CallAudioServiceSessionChanged, object: nil, queue: nil) { _ in
-            self.didChangeAudioSession()
+        NotificationCenter.default.addObserver(forName: CallAudioServiceSessionChanged, object: nil, queue: nil) { [weak self] _ in
+            self?.didChangeAudioSession()
         }
 
     }