diff options
Diffstat (limited to 'sound/core/pcm_lib.c')
| -rw-r--r-- | sound/core/pcm_lib.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c index e2a817eac2a..aa54195ef3b 100644 --- a/sound/core/pcm_lib.c +++ b/sound/core/pcm_lib.c @@ -325,8 +325,7 @@ static int snd_pcm_update_hw_ptr0(struct snd_pcm_substream *substream, if (in_interrupt) { /* we know that one period was processed */ /* delta = "expected next hw_ptr" for in_interrupt != 0 */ - delta = old_hw_ptr - (old_hw_ptr % runtime->period_size) - + runtime->period_size; + delta = runtime->hw_ptr_interrupt + runtime->period_size; if (delta > new_hw_ptr) { hw_base += runtime->buffer_size; if (hw_base >= runtime->boundary) @@ -437,6 +436,10 @@ static int snd_pcm_update_hw_ptr0(struct snd_pcm_substream *substream, runtime->silence_size > 0) snd_pcm_playback_silence(substream, new_hw_ptr); + if (in_interrupt) { + runtime->hw_ptr_interrupt = new_hw_ptr - + (new_hw_ptr % runtime->period_size); + } runtime->hw_ptr_base = hw_base; runtime->status->hw_ptr = new_hw_ptr; runtime->hw_ptr_jiffies = jiffies; |