diff options
| author | cg <cg@FreeBSD.org> | 2001-04-08 20:14:14 +0000 |
|---|---|---|
| committer | cg <cg@FreeBSD.org> | 2001-04-08 20:14:14 +0000 |
| commit | d51c99ac75e43f62b30f2a2265e96081da4d5a06 (patch) | |
| tree | 949f3f530d06fc0ed81acc75da86283d174a05f4 | |
| parent | c818630db2753ad55f201889dba54d20097d64bd (diff) | |
| download | FreeBSD-src-d51c99ac75e43f62b30f2a2265e96081da4d5a06.zip FreeBSD-src-d51c99ac75e43f62b30f2a2265e96081da4d5a06.tar.gz | |
if the feeder chain returned no data, do not try to acquire the data.
| -rw-r--r-- | sys/dev/sound/pcm/buffer.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/sys/dev/sound/pcm/buffer.c b/sys/dev/sound/pcm/buffer.c index 1480c95..ddc3219 100644 --- a/sys/dev/sound/pcm/buffer.c +++ b/sys/dev/sound/pcm/buffer.c @@ -514,7 +514,8 @@ sndbuf_feed(struct snd_dbuf *from, struct snd_dbuf *to, struct pcm_channel *chan return EINVAL; count = FEEDER_FEED(feeder, channel, to->tmpbuf, count, from); - sndbuf_acquire(to, to->tmpbuf, count); + if (count) + sndbuf_acquire(to, to->tmpbuf, count); /* the root feeder has called sndbuf_dispose(from, , bytes fetched) */ return 0; |
