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authorTakashi Iwai <tiwai@suse.de>2008-11-04 17:48:39 +0100
committerTakashi Iwai <tiwai@suse.de>2008-11-04 17:48:39 +0100
commitbfc5c26fb692fa7a196108c3b23d9c747d105c00 (patch)
tree47d72aebe5208c369e12f70f068503cb9e589a28
parentb91f080f517cf9dd52023c11127a0ca33190e31a (diff)
ALSA: hda - Don't create empty PCM streams
Due to the hda-reconfiguration patches, the check of empty stream is gone, and this results in an error with the codec setup with empty streams. This patch adds the check again to avoid the error at probing. Signed-off-by: Takashi Iwai <tiwai@suse.de>
-rw-r--r--sound/pci/hda/hda_codec.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index aa9cd142c30..3e7cda9c3de 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -2485,6 +2485,11 @@ int snd_hda_build_pcms(struct hda_bus *bus)
struct hda_pcm *cpcm = &codec->pcm_info[pcm];
int type = cpcm->pcm_type;
int dev;
+
+ if (!cpcm->stream[0].substreams &&
+ !cpcm->stream[1].substreams)
+ continue; /* no substreams assigned */
+
switch (type) {
case HDA_PCM_TYPE_AUDIO:
if (num_devs[type] >= ARRAY_SIZE(audio_idx)) {