diff options
| -rw-r--r-- | sound/hda/hdac_stream.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/sound/hda/hdac_stream.c b/sound/hda/hdac_stream.c index 8f625402505f..547adbc22590 100644 --- a/sound/hda/hdac_stream.c +++ b/sound/hda/hdac_stream.c @@ -500,6 +500,9 @@ int snd_hdac_stream_setup_periods(struct hdac_stream *azx_dev) dmab = snd_pcm_get_dma_buf(substream); } else if (cstream) { dmab = snd_pcm_get_dma_buf(cstream); + } else { + WARN(1, "No substream or cstream assigned\n"); + return -EINVAL; } /* reset BDL address */ |