We should be consistent and always test that the DMA buffer is allocated before continuing with the hw_params setup.
Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com Reviewed-by: Ranjani Sridharan ranjani.sridharan@linux.intel.com Reviewed-by: Péter Ujfalusi peter.ujfalusi@linux.intel.com Reviewed-by: Bard Liao yung-chuan.liao@linux.intel.com --- sound/soc/sof/intel/hda-stream.c | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-)
diff --git a/sound/soc/sof/intel/hda-stream.c b/sound/soc/sof/intel/hda-stream.c index 4531e1ee5ed0..b58662faa4aa 100644 --- a/sound/soc/sof/intel/hda-stream.c +++ b/sound/soc/sof/intel/hda-stream.c @@ -411,6 +411,11 @@ int hda_dsp_iccmax_stream_hw_params(struct snd_sof_dev *sdev, struct hdac_ext_st return -ENODEV; }
+ if (!dmab) { + dev_err(sdev->dev, "error: no dma buffer allocated!\n"); + return -ENODEV; + } + if (hstream->posbuf) *hstream->posbuf = 0;
@@ -485,16 +490,16 @@ int hda_dsp_stream_hw_params(struct snd_sof_dev *sdev, return -ENODEV; }
- /* decouple host and link DMA */ - mask = 0x1 << hstream->index; - snd_sof_dsp_update_bits(sdev, HDA_DSP_PP_BAR, SOF_HDA_REG_PP_PPCTL, - mask, mask); - if (!dmab) { dev_err(sdev->dev, "error: no dma buffer allocated!\n"); return -ENODEV; }
+ /* decouple host and link DMA */ + mask = 0x1 << hstream->index; + snd_sof_dsp_update_bits(sdev, HDA_DSP_PP_BAR, SOF_HDA_REG_PP_PPCTL, + mask, mask); + /* clear stream status */ snd_sof_dsp_update_bits(sdev, HDA_DSP_HDA_BAR, sd_offset, SOF_HDA_CL_DMA_SD_INT_MASK |