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authorLinus Torvalds <torvalds@linux-foundation.org>2011-10-02 19:22:44 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-10-02 19:22:44 -0700
commit4edf5886bba1a3fba3b780c7263f64c23536a4a5 (patch)
tree69d49b7b267a4970f1e56f5a8196937cc53fb80e
parent2e518181074b4ac67c27768f44a1515c4fc1bff9 (diff)
parent798cb7e897210dbf827f69a302c0967e0380ebac (diff)
downloadlinux-3.0-android-ux500-4edf5886bba1a3fba3b780c7263f64c23536a4a5.tar.gz
Merge branch 'for-linus' of git://github.com/tiwai/sound
* 'for-linus' of git://github.com/tiwai/sound: ALSA: hda - Fix a regression of the position-buffer check
-rw-r--r--sound/pci/hda/hda_intel.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index be6982289c0..e9a2a8795d1 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -1924,7 +1924,8 @@ static unsigned int azx_via_get_position(struct azx *chip,
}
static unsigned int azx_get_position(struct azx *chip,
- struct azx_dev *azx_dev)
+ struct azx_dev *azx_dev,
+ bool with_check)
{
unsigned int pos;
int stream = azx_dev->substream->stream;
@@ -1940,7 +1941,7 @@ static unsigned int azx_get_position(struct azx *chip,
default:
/* use the position buffer */
pos = le32_to_cpu(*azx_dev->posbuf);
- if (chip->position_fix[stream] == POS_FIX_AUTO) {
+ if (with_check && chip->position_fix[stream] == POS_FIX_AUTO) {
if (!pos || pos == (u32)-1) {
printk(KERN_WARNING
"hda-intel: Invalid position buffer, "
@@ -1964,7 +1965,7 @@ static snd_pcm_uframes_t azx_pcm_pointer(struct snd_pcm_substream *substream)
struct azx *chip = apcm->chip;
struct azx_dev *azx_dev = get_azx_dev(substream);
return bytes_to_frames(substream->runtime,
- azx_get_position(chip, azx_dev));
+ azx_get_position(chip, azx_dev, false));
}
/*
@@ -1987,7 +1988,7 @@ static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev)
return -1; /* bogus (too early) interrupt */
stream = azx_dev->substream->stream;
- pos = azx_get_position(chip, azx_dev);
+ pos = azx_get_position(chip, azx_dev, true);
if (WARN_ONCE(!azx_dev->period_bytes,
"hda-intel: zero azx_dev->period_bytes"))