The detection of direction for compress takes into account codec
capabilities only and not the CPU ones. Fix this by checking the
CPU side capabilities as well.
Cc: <stable@xxxxxxxxxxxxxxx>
Tested-by: Ashish Panwar <ashish.panwar@xxxxxxxxx>
Signed-off-by: Vinod Koul <vinod.koul@xxxxxxxxx>
---
sound/soc/soc-compress.c | 23 ++++++++++++++++++++---
1 file changed, 20 insertions(+), 3 deletions(-)
diff --git a/sound/soc/soc-compress.c b/sound/soc/soc-compress.c
index 12a9820feac1..b5737945bcc3 100644
--- a/sound/soc/soc-compress.c
+++ b/sound/soc/soc-compress.c
@@ -630,6 +630,7 @@ int snd_soc_new_compress(struct snd_soc_pcm_runtime *rtd, int num)
struct snd_pcm *be_pcm;
char new_name[64];
int ret = 0, direction = 0;
+ int playback = 0, capture = 0;
if (rtd->num_codecs > 1) {
dev_err(rtd->card->dev, "Multicodec not supported for compressed stream\n");
@@ -641,11 +642,27 @@ int snd_soc_new_compress(struct snd_soc_pcm_runtime *rtd, int num)
rtd->dai_link->stream_name, codec_dai->name, num);
if (codec_dai->driver->playback.channels_min)
+ playback = 1;
+ if (codec_dai->driver->capture.channels_min)
+ capture = 1;
+
+ capture = capture && cpu_dai->driver->capture.channels_min;
+ playback = playback && cpu_dai->driver->playback.channels_min;
+
+ /*
+ * Compress devices are unidirectional so only one of the directions
+ * should be set, check for that (xor)
+ */
+ if (!(playback || capture)) {
+ dev_err(rtd->card->dev, "Invalid direction for compress P %d, C %d\n",
+ playback, capture);
+ return -EINVAL;
+ }
+
+ if (playback)
direction = SND_COMPRESS_PLAYBACK;
- else if (codec_dai->driver->capture.channels_min)
- direction = SND_COMPRESS_CAPTURE;
else
- return -EINVAL;
+ direction = SND_COMPRESS_CAPTURE;
compr = kzalloc(sizeof(*compr), GFP_KERNEL);
if (compr == NULL) {
--
1.9.1
--
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