diff mbox series

[2/7] soundwire: stream: fix NULL/IS_ERR confusion

Message ID 20200901150240.19288-3-yung-chuan.liao@linux.intel.com (mailing list archive)
State New, archived
Headers show
Series ASoC: soundwire: Move sdw stream operations to | expand

Commit Message

Bard Liao Sept. 1, 2020, 3:02 p.m. UTC 
From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>

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@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@linux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
---
 drivers/soundwire/stream.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/soundwire/stream.c b/drivers/soundwire/stream.c
index 37290a799023..3f54db259f45 100644
--- a/drivers/soundwire/stream.c
+++ b/drivers/soundwire/stream.c
@@ -1911,7 +1911,7 @@  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;
 	}