diff options
| author | Takashi Iwai <tiwai@suse.de> | 2009-11-01 11:11:07 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2009-11-01 11:11:07 +0100 |
| commit | e87a3dd33eab30b4db539500064a9584867e4f2c (patch) | |
| tree | 2f7ad16e46ae30518ff63bb5391b63f7f7cc74dd /sound/usb/caiaq/audio.c | |
| parent | b14f5de731ae657d498d18d713c6431bfbeefb4b (diff) | |
| parent | 3d00941371a765779c4e3509214c7e5793cce1fe (diff) | |
| download | talos-obmc-linux-e87a3dd33eab30b4db539500064a9584867e4f2c.tar.gz talos-obmc-linux-e87a3dd33eab30b4db539500064a9584867e4f2c.zip | |
Merge branch 'fix/misc' into topic/misc
Diffstat (limited to 'sound/usb/caiaq/audio.c')
| -rw-r--r-- | sound/usb/caiaq/audio.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/sound/usb/caiaq/audio.c b/sound/usb/caiaq/audio.c index 121af0644fd9..86b2c3b92df5 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 @@ -269,16 +273,22 @@ snd_usb_caiaq_pcm_pointer(struct snd_pcm_substream *sub) { int index = sub->number; struct snd_usb_caiaqdev *dev = snd_pcm_substream_chip(sub); + snd_pcm_uframes_t ptr; + + spin_lock(&dev->spinlock); if (dev->input_panic || dev->output_panic) - return SNDRV_PCM_POS_XRUN; + ptr = SNDRV_PCM_POS_XRUN; if (sub->stream == SNDRV_PCM_STREAM_PLAYBACK) - return bytes_to_frames(sub->runtime, + ptr = bytes_to_frames(sub->runtime, dev->audio_out_buf_pos[index]); else - return bytes_to_frames(sub->runtime, + ptr = bytes_to_frames(sub->runtime, dev->audio_in_buf_pos[index]); + + spin_unlock(&dev->spinlock); + return ptr; } /* operators for both playback and capture */ |
