Re: [alsa-devel] [PATCH v7 3/9] ASoC: Intel: skl-hda-dsp-generic: use snd-hda-codec-hdmi

[kbuild test robot <lkp@intel.com>]

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Hi Kai,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on asoc/for-next]
[cannot apply to v5.4-rc4 next-20191025]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url:    https://github.com/0day-ci/linux/commits/Kai-Vehmanen/adapt-SOF-to-use-snd-hda-codec-hdmi/20191025-061501
base:   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.1-dirty
        make ARCH=x86_64 allmodconfig
        make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>


sparse warnings: (new ones prefixed by >>)

>> sound/soc/intel/boards/hda_dsp_common.c:26:76: sparse: sparse: Using plain integer as NULL pointer
   sound/soc/intel/boards/hda_dsp_common.c:34:16: sparse: sparse: Using plain integer as NULL pointer

vim +26 sound/soc/intel/boards/hda_dsp_common.c

    12	
    13	/*
    14	 * Search card topology and return PCM device number
    15	 * matching Nth HDMI device (zero-based index).
    16	 */
    17	struct snd_pcm *hda_dsp_hdmi_pcm_handle(struct snd_soc_card *card,
    18						int hdmi_idx)
    19	{
    20		struct snd_soc_pcm_runtime *rtd;
    21		struct snd_pcm *spcm;
    22		int i = 0;
    23	
    24		for_each_card_rtds(card, rtd) {
    25			spcm = rtd->pcm ?
  > 26				rtd->pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].pcm : 0;
    27			if (spcm && strstr(spcm->id, "HDMI")) {
    28				if (i == hdmi_idx)
    29					return rtd->pcm;
    30				++i;
    31			}
    32		}
    33	
    34		return 0;
    35	}
    36	

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