diff options
Diffstat (limited to 'sound/pci')
| -rw-r--r-- | sound/pci/hda/hda_intel.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index 8a5dc574b65..90713f0b526 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -381,7 +381,7 @@ struct azx_dev { */ unsigned char stream_tag; /* assigned stream */ unsigned char index; /* stream index */ - int device; /* last device number assigned to */ + int assigned_key; /* last device# key assigned to */ unsigned int opened :1; unsigned int running :1; @@ -1613,6 +1613,9 @@ azx_assign_device(struct azx *chip, struct snd_pcm_substream *substream) { int dev, i, nums; struct azx_dev *res = NULL; + /* make a non-zero unique key for the substream */ + int key = (substream->pcm->device << 16) | (substream->number << 2) | + (substream->stream + 1); if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { dev = chip->playback_index_offset; @@ -1624,12 +1627,12 @@ azx_assign_device(struct azx *chip, struct snd_pcm_substream *substream) for (i = 0; i < nums; i++, dev++) if (!chip->azx_dev[dev].opened) { res = &chip->azx_dev[dev]; - if (res->device == substream->pcm->device) + if (res->assigned_key == key) break; } if (res) { res->opened = 1; - res->device = substream->pcm->device; + res->assigned_key = key; } return res; } |