From 98ed54124ae013c663c3819a538cb101c806c6d5 Mon Sep 17 00:00:00 2001
From: Andreas Eversberg <jolly@eversberg.eu>
Date: Thu, 2 Jun 2022 20:26:45 +0200
Subject: [PATCH] Fixed glitch in sound buffer space calculation

Sometimes the sound buffer (ALSA) returns a few more samples than we
sent to it. In this case we return 0, which means that no data has
to be sent.
---
 src/libsound/sound_alsa.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/libsound/sound_alsa.c b/src/libsound/sound_alsa.c
index 4eca8a1..52f9029 100644
--- a/src/libsound/sound_alsa.c
+++ b/src/libsound/sound_alsa.c
@@ -515,6 +515,8 @@ int sound_get_tosend(void *inst, int buffer_size)
 	}
 
 	tosend = buffer_size - delay;
+	if (tosend < 0)
+		tosend = 0;
 	return tosend;
 }