From ef22189616e5ae85e23f813fc2933b2dd6a31cea Mon Sep 17 00:00:00 2001
From: Leo <lenemter@gmail.com>
Date: Sat, 8 Jul 2023 15:30:10 +0900
Subject: [PATCH] Try to fix crash (#248)

---
 src/PulseAudioManager.vala | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/PulseAudioManager.vala b/src/PulseAudioManager.vala
index bcbc7d01..b09f9cd8 100644
--- a/src/PulseAudioManager.vala
+++ b/src/PulseAudioManager.vala
@@ -209,7 +209,7 @@ public class Sound.PulseAudioManager : GLib.Object {
     }
 
     public void change_device_mute (Device? device, bool mute = true) {
-        if (device == null) {
+        if (device == null || device.source_name == null) {
             return;
         }