ASoC: soc-pcm: fix dpcm_path_get error handling

[firefly-linux-kernel-4.4.55.git] / sound / soc / soc-pcm.c

diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index 731fdb5b5f9bf898c84533641252b561cc0065fa..642c862407520db3e36b4ddadf1b5d7a6b467749 100644 (file)
--- 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");
        }