Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: (377 commits)
  ASoC: au1x: PSC-AC97 bugfixes
  ALSA: dummy - Increase MAX_PCM_SUBSTREAMS to 128
  ALSA: dummy - Add debug proc file
  ALSA: Add const prefix to proc helper functions
  ALSA: Re-export snd_pcm_format_name() function
  ALSA: hda - Use auto model for HP laptops with ALC268 codec
  ALSA: cs46xx - Fix minimum period size
  ASoC: Fix WM835x Out4 capture enumeration
  ALSA: Remove unneeded ifdef from sound/core.h
  ALSA: Remove struct snd_monitor_file from public sound/core.h
  ASoC: Remove unuused hw_read_t
  sound: oxygen: work around MCE when changing volume
  ALSA: dummy - Fake buffer allocations
  ALSA: hda/realtek: Added support for CLEVO M540R subsystem, 6 channel + digital
  ASoC: fix pxa2xx-ac97.c breakage
  ALSA: dummy - Fix the timer calculation in systimer mode
  ALSA: dummy - Add more description
  ALSA: dummy - Better jiffies handling
  ALSA: dummy - Support high-res timer mode
  ALSA: Release v1.0.21
  ...

1 files changed, 8 insertions, 4 deletions

diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c
index 9db60d831bb2..30f410832a25 100644
--- a/sound/core/pcm_lib.c
+++ b/sound/core/pcm_lib.c
@@ -197,12 +197,16 @@ static int snd_pcm_update_hw_ptr_post(struct snd_pcm_substream *substream,
                 avail = snd_pcm_capture_avail(runtime);
         if (avail > runtime->avail_max)
                 runtime->avail_max = avail;
-        if (avail >= runtime->stop_threshold) {
-                if (substream->runtime->status->state == SNDRV_PCM_STATE_DRAINING)
+        if (runtime->status->state == SNDRV_PCM_STATE_DRAINING) {
+                if (avail >= runtime->buffer_size) {
                         snd_pcm_drain_done(substream);
-                else
+                        return -EPIPE;
+                }
+        } else {
+                if (avail >= runtime->stop_threshold) {
                         xrun(substream);
-                return -EPIPE;
+                        return -EPIPE;
+                }
         }
         if (avail >= runtime->control->avail_min)
                 wake_up(&runtime->sleep);