Fix a bug which can result in white noise from the driver after stream
start or unpause.
Signed-off-by: Mark Hills <mark@xxxxxxxxxxx>
Acked-by: Daniel Mack <daniel@xxxxxxxx>
---
sound/usb/caiaq/audio.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/sound/usb/caiaq/audio.c b/sound/usb/caiaq/audio.c
index e76017c..86b2c3b 100644
--- a/sound/usb/caiaq/audio.c
+++ b/sound/usb/caiaq/audio.c
@@ -62,10 +62,14 @@ static void
activate_substream(struct snd_usb_caiaqdev *dev,
struct snd_pcm_substream *sub)
{
+ spin_lock(&dev->spinlock);
+
if (sub->stream == SNDRV_PCM_STREAM_PLAYBACK)
dev->sub_playback[sub->number] = sub;
else
dev->sub_capture[sub->number] = sub;
+
+ spin_unlock(&dev->spinlock);
}
static void
--
1.6.4.4
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