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-rw-r--r--sound/drivers/dummy.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/sound/drivers/dummy.c b/sound/drivers/dummy.c
index a276f7c..1861175 100644
--- a/sound/drivers/dummy.c
+++ b/sound/drivers/dummy.c
@@ -231,8 +231,9 @@ static int snd_card_dummy_pcm_prepare(struct snd_pcm_substream *substream)
static void snd_card_dummy_pcm_timer_function(unsigned long data)
{
struct snd_dummy_pcm *dpcm = (struct snd_dummy_pcm *)data;
+ unsigned long flags;
- spin_lock(&dpcm->lock);
+ spin_lock_irqsave(&dpcm->lock, flags);
dpcm->timer.expires = 1 + jiffies;
add_timer(&dpcm->timer);
dpcm->pcm_irq_pos += dpcm->pcm_jiffie;
@@ -240,11 +241,10 @@ static void snd_card_dummy_pcm_timer_function(unsigned long data)
dpcm->pcm_buf_pos %= dpcm->pcm_size;
if (dpcm->pcm_irq_pos >= dpcm->pcm_count) {
dpcm->pcm_irq_pos %= dpcm->pcm_count;
- spin_unlock(&dpcm->lock);
+ spin_unlock_irqrestore(&dpcm->lock, flags);
snd_pcm_period_elapsed(dpcm->substream);
- spin_lock(&dpcm->lock);
- }
- spin_unlock(&dpcm->lock);
+ } else
+ spin_unlock_irqrestore(&dpcm->lock, flags);
}
static snd_pcm_uframes_t snd_card_dummy_pcm_pointer(struct snd_pcm_substream *substream)
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