From: Chao Song chao.song@linux.intel.com
The call to snd_sof_find_spcm_dai() could return NULL, add nullable check for the return value to avoid null pointer defenrece.
Fixes: 7cb19007baba ("ASoC: SOF: ipc4-pcm: add hw_params") Signed-off-by: Chao Song chao.song@linux.intel.com Reviewed-by: Bard Liao yung-chuan.liao@linux.intel.com Reviewed-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com Signed-off-by: Peter Ujfalusi peter.ujfalusi@linux.intel.com --- sound/soc/sof/ipc4-pcm.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/sound/soc/sof/ipc4-pcm.c b/sound/soc/sof/ipc4-pcm.c index 802cbf73594e..db19cd03ecad 100644 --- a/sound/soc/sof/ipc4-pcm.c +++ b/sound/soc/sof/ipc4-pcm.c @@ -709,6 +709,9 @@ static int sof_ipc4_pcm_hw_params(struct snd_soc_component *component, struct snd_sof_pcm *spcm;
spcm = snd_sof_find_spcm_dai(component, rtd); + if (!spcm) + return -EINVAL; + time_info = spcm->stream[substream->stream].private; /* delay calculation is not supported by current fw_reg ABI */ if (!time_info)