From: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx> snd_soc_dai_get_sdw_stream() can only return -ENOTSUPP or the stream, NULL is not a possible value. Fixes: 4550569bd779f ('soundwire: stream: add helper to startup/shutdown streams') Reported-by: Bard Liao <yung-chuan.liao@xxxxxxxxxxxxxxx> Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx> Reviewed-by: Rander Wang <rander.wang@xxxxxxxxxxxxxxx> Signed-off-by: Bard Liao <yung-chuan.liao@xxxxxxxxxxxxxxx> --- drivers/soundwire/stream.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/soundwire/stream.c b/drivers/soundwire/stream.c index e4cf484f5905..12a4a4bba85a 100644 --- a/drivers/soundwire/stream.c +++ b/drivers/soundwire/stream.c @@ -1914,7 +1914,7 @@ void sdw_shutdown_stream(void *sdw_substream) sdw_stream = snd_soc_dai_get_sdw_stream(dai, substream->stream); - if (!sdw_stream) { + if (IS_ERR(sdw_stream)) { dev_err(rtd->dev, "no stream found for DAI %s", dai->name); return; } -- 2.17.1