diff mbox series

ASoC: SOF: ipc4-pcm: fix possible null pointer deference

Message ID 20230816133311.7523-1-peter.ujfalusi@linux.intel.com
State New
Headers show
Series ASoC: SOF: ipc4-pcm: fix possible null pointer deference | expand

Commit Message

Peter Ujfalusi Aug. 16, 2023, 1:33 p.m. UTC 
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 mbox series

Patch

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)