From: Kai Vehmanen Date: Sun, 14 Feb 2021 22:04:14 +0000 (+0200) Subject: ASoC: soc-pcm: fix hwparams min/max init for dpcm X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=140f553d1298e0ddbe21983efe5789fe8b484273;p=linux.git ASoC: soc-pcm: fix hwparams min/max init for dpcm When runtime is initialized with dpcm_init_runtime_hw(), some of the min/max calculations assume that defaults are set. For example calculation of channel min/max values may be done using zero-initialized data and soc_pcm_hw_update_chan() will always return max-channels of 0 in this case. This will result in failure to open the PCM at all. Fix the issue by calling soc_pcm_hw_init() before calling any soc_pcm_hw_update_*() functions. Remove the conditional code on runtime->hw.formats as this field is anyways set in soc_pcm_hw_init(). Fixes: 6cb56a4549e9 ("ASoC: soc-pcm: add soc_pcm_hw_update_chan()") Reported-by: Pierre-Louis Bossart Signed-off-by: Kai Vehmanen Link: https://lore.kernel.org/r/20210214220414.2876690-1-kai.vehmanen@linux.intel.com Signed-off-by: Mark Brown --- diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c index b7c90da1820e9..37094aeff4403 100644 --- a/sound/soc/soc-pcm.c +++ b/sound/soc/soc-pcm.c @@ -1531,12 +1531,10 @@ static void dpcm_init_runtime_hw(struct snd_pcm_runtime *runtime, { struct snd_pcm_hardware *hw = &runtime->hw; + soc_pcm_hw_init(hw); soc_pcm_hw_update_rate(hw, stream); soc_pcm_hw_update_chan(hw, stream); - if (runtime->hw.formats) - runtime->hw.formats &= stream->formats; - else - runtime->hw.formats = stream->formats; + soc_pcm_hw_update_format(hw, stream); } static void dpcm_runtime_merge_format(struct snd_pcm_substream *substream,