mixer/alsa: handle ENODEV

Fixes busy loop when USB sound device gets unplugged (Mantis bug #3824).
2013-10-01 16:33:07 +02:00 · 2013-10-01 16:33:07 +02:00 · 9a1076256d
parent 72ef38d4a7
commit 9a1076256d
2 changed files with 7 additions and 0 deletions
--- a/2
+++ b/2
@ -1,4 +1,6 @@
 ver 0.17.6 (not yet released)
+* mixer:
+  - alsa: fix busy loop when USB sound device gets unplugged

 ver 0.17.5 (2013/08/04)
 * protocol:
--- 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;