From: Chao Song <chao.song@xxxxxxxxxxxxxxx>
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@xxxxxxxxxxxxxxx>
Reviewed-by: Bard Liao <yung-chuan.liao@xxxxxxxxxxxxxxx>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@xxxxxxxxxxxxxxx>
---
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)
--
2.41.0
