From 020371f145705a69cb7b4a0188d144ca78d2d57e Mon Sep 17 00:00:00 2001
From: Max Kellermann <max@musicpd.org>
Date: Wed, 14 Nov 2018 11:48:04 +0100
Subject: [PATCH] output/alsa: wake up the client thread after generating
 silence

Fixes a theoretical race condition which could occur in Drain() (but
was extremely unlikely).
---
 src/output/plugins/AlsaOutputPlugin.cxx | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/output/plugins/AlsaOutputPlugin.cxx b/src/output/plugins/AlsaOutputPlugin.cxx
index ee1487fb0..b258ed1fd 100644
--- a/src/output/plugins/AlsaOutputPlugin.cxx
+++ b/src/output/plugins/AlsaOutputPlugin.cxx
@@ -964,6 +964,7 @@ try {
 			{
 				const std::lock_guard<Mutex> lock(mutex);
 				active = false;
+				cond.signal();
 			}
 
 			/* avoid race condition: see if data has