diff mbox series

[10/13] ASoC: SOF: Intel: hda: fix warnings during FW load

Message ID 20190927200538.660-11-pierre-louis.bossart@linux.intel.com (mailing list archive)
State Accepted
Commit 4ff5f6439fe69624e8f7d559915e9b54a6477684
Headers show
Series ASoC: SOF: fixes and improvements | expand

Commit Message

Pierre-Louis Bossart Sept. 27, 2019, 8:05 p.m. UTC 
From: Kai Vehmanen <kai.vehmanen@linux.intel.com>

The "snd_pcm_substream" handle was not initialized properly
in hda-loader.c for firmware load.

When the HDA DMAs were used to load the firmware,
the interrupts related to firmware load also triggered
calls to snd_sof_pcm_period_elapsed() on a non-existent ALSA
PCM stream.

This caused runtime kernel warnings from
pcm_lib.c:snd_pcm_period_elapsed().

Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
---
 sound/soc/sof/intel/hda-loader.c | 1 +
 1 file changed, 1 insertion(+)
diff mbox series

Patch

diff --git a/sound/soc/sof/intel/hda-loader.c b/sound/soc/sof/intel/hda-loader.c
index 6427f0b3a2f1..65c2af3fcaab 100644
--- a/sound/soc/sof/intel/hda-loader.c
+++ b/sound/soc/sof/intel/hda-loader.c
@@ -44,6 +44,7 @@  static int cl_stream_prepare(struct snd_sof_dev *sdev, unsigned int format,
 		return -ENODEV;
 	}
 	hstream = &dsp_stream->hstream;
+	hstream->substream = NULL;
 
 	/* allocate DMA buffer */
 	ret = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV_SG, &pci->dev, size, dmab);