ASoC: soc-pcm: fix dpcm_path_get error handling

dpcm_path_get may return -ENOMEM when allocating memory for list
fails. We should not keep processing path or start up dpcm dai in
this case.

Signed-off-by: Qiao Zhou <zhouqiao@marvell.com>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

2 files changed, 10 insertions, 2 deletions

diff --git a/sound/soc/soc-compress.c b/sound/soc/soc-compress.c
index 27c06acce205..3092b58fede6 100644
--- a/sound/soc/soc-compress.c
+++ b/sound/soc/soc-compress.c
@@ -101,7 +101,11 @@ static int soc_compr_open_fe(struct snd_compr_stream *cstream)
 
         fe->dpcm[stream].runtime = fe_substream->runtime;
 
-        if (dpcm_path_get(fe, stream, &list) <= 0) {
+        ret = dpcm_path_get(fe, stream, &list);
+        if (ret < 0) {
+                mutex_unlock(&fe->card->mutex);
+                goto fe_err;
+        } else if (ret == 0) {
                 dev_dbg(fe->dev, "ASoC: %s no valid %s route\n",
                         fe->dai_link->name, stream ? "capture" : "playback");
         }
diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index 731fdb5b5f9b..642c86240752 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -2352,7 +2352,11 @@ static int dpcm_fe_dai_open(struct snd_pcm_substream *fe_substream)
         mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME);
         fe->dpcm[stream].runtime = fe_substream->runtime;
 
-        if (dpcm_path_get(fe, stream, &list) <= 0) {
+        ret = dpcm_path_get(fe, stream, &list);
+        if (ret < 0) {
+                mutex_unlock(&fe->card->mutex);
+                return ret;
+        } else if (ret == 0) {
                 dev_dbg(fe->dev, "ASoC: %s no valid %s route\n",
                         fe->dai_link->name, stream ? "capture" : "playback");
         }