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authorVinod Koul <vinod.koul@intel.com>2016-01-07 21:48:14 +0530
committerMark Brown <broonie@kernel.org>2016-01-08 13:44:01 +0000
commita1068045883ed4a18363a4ebad0c3d55e473b716 (patch)
tree5e838fa68dbb0f35167cbe1ad5514243ca8b9106 /sound
parent8005c49d9aea74d382f474ce11afbbc7d7130bec (diff)
ASoC: compress: Fix compress device direction check
The detection of direction for compress was only taking into account codec capabilities and not CPU ones. Fix this by checking the CPU side capabilities as well Cc: <stable@vger.kernel.org> Tested-by: Ashish Panwar <ashish.panwar@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound')
-rw-r--r--sound/soc/soc-compress.c23
1 files changed, 20 insertions, 3 deletions
diff --git a/sound/soc/soc-compress.c b/sound/soc/soc-compress.c
index 12a9820feac1..bb82bb966000 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 != 1) {
+ 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) {