[PATCH] ASoC: img-parallel-out: Fix a reference count leak

[wu000273]

From: Qiushi Wu <wu000...@umn.edu>

pm_runtime_get_sync() increments the runtime PM usage counter even
when it returns an error code, causing incorrect ref count if
pm_runtime_put_noidle() is not called in error handling paths.
Thus call pm_runtime_put_noidle() if pm_runtime_get_sync() fails.

Signed-off-by: Qiushi Wu <wu000...@umn.edu>
---
 sound/soc/img/img-parallel-out.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/sound/soc/img/img-parallel-out.c b/sound/soc/img/img-parallel-out.c
index 5ddbe3a31c2e..4da49a42e854 100644
--- a/sound/soc/img/img-parallel-out.c
+++ b/sound/soc/img/img-parallel-out.c
@@ -163,8 +163,10 @@ static int img_prl_out_set_fmt(struct snd_soc_dai *dai, 
unsigned int fmt)
        }
 
        ret = pm_runtime_get_sync(prl->dev);
-       if (ret < 0)
+       if (ret < 0) {
+               pm_runtime_put_noidle(prl->dev);
                return ret;
+       }
 
        reg = img_prl_out_readl(prl, IMG_PRL_OUT_CTL);
        reg = (reg & ~IMG_PRL_OUT_CTL_EDGE_MASK) | control_set;
-- 
2.17.1