1 files changed, 5 insertions, 0 deletions

diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index aa9cd142c30a..3e7cda9c3de5 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)) {