From 251080344ea66ff34e4b1f88847475cf3a095aca Mon Sep 17 00:00:00 2001
From: ejurgensen <espenjurgensen@gmail.com>
Date: Fri, 27 Dec 2019 11:29:36 +0100
Subject: [PATCH] [alsa] Fix missing unsubscription when closing session (ref.
 #866)

---
 src/outputs/alsa.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/outputs/alsa.c b/src/outputs/alsa.c
index 64d2dba8..2615b2b4 100644
--- a/src/outputs/alsa.c
+++ b/src/outputs/alsa.c
@@ -494,6 +494,10 @@ playback_session_free(struct alsa_playback_session *pb)
   if (!pb)
     return;
 
+  // Unsubscribe from qualities that sync_correct() might have requested
+  if (pb->sync_resample_step != 0)
+    outputs_quality_unsubscribe(&pb->quality);
+
   pcm_close(pb->pcm);
 
   ringbuffer_free(&pb->prebuf, 1);