From 9a1076256deef8bf806942eb72eabdbfdf74ddb3 Mon Sep 17 00:00:00 2001
From: Max Kellermann <max@duempel.org>
Date: Tue, 1 Oct 2013 16:33:07 +0200
Subject: mixer/alsa: handle ENODEV

Fixes busy loop when USB sound device gets unplugged (Mantis bug
#3824).
---
 src/mixer/alsa_mixer_plugin.c | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'src')

diff --git a/src/mixer/alsa_mixer_plugin.c b/src/mixer/alsa_mixer_plugin.c
index cecf44db9..0c8625cc1 100644
--- a/src/mixer/alsa_mixer_plugin.c
+++ b/src/mixer/alsa_mixer_plugin.c
@@ -182,6 +182,11 @@ alsa_mixer_source_dispatch(GSource *_source,
 	if (err < 0) {
 		g_warning("snd_mixer_handle_events() failed: %s",
 			  snd_strerror(err));
+
+		if (err == -ENODEV)
+			/* the sound device was unplugged; disable
+			   this GSource */
+			return false;
 	}
 
 	return true;
-- 
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