[PATCH] ASoC: intel: Fix memleak in sst_media_open

[Dinghao Liu]

When power_up_sst() fails, stream needs to be freed
just like when try_module_get() fails. However, current
code is returning directly and ends up leaking memory.

Fixes: 0121327c1a68b ("ASoC: Intel: mfld-pcm: add control for powering up/down 
dsp")
Signed-off-by: Dinghao Liu <dinghao....@zju.edu.cn>
---
 sound/soc/intel/atom/sst-mfld-platform-pcm.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/sound/soc/intel/atom/sst-mfld-platform-pcm.c 
b/sound/soc/intel/atom/sst-mfld-platform-pcm.c
index 49b9f18472bc..79fedf9e3da1 100644
--- a/sound/soc/intel/atom/sst-mfld-platform-pcm.c
+++ b/sound/soc/intel/atom/sst-mfld-platform-pcm.c
@@ -330,8 +330,10 @@ static int sst_media_open(struct snd_pcm_substream 
*substream,
        runtime->private_data = stream;
 
        ret_val = power_up_sst(stream);
-       if (ret_val < 0)
+       if (ret_val < 0) {
+               kfree(stream);
                return ret_val;
+       }
 
        /* Make sure, that the period size is always even */
        snd_pcm_hw_constraint_step(substream->runtime, 0,
-- 
2.17.1