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Subject[PATCH] ASoC: img-i2s-out: Fix runtime PM imbalance on error
Date
pm_runtime_get_sync() increments the runtime PM usage counter even
the call returns an error code. Thus a pairing decrement is needed
on the error handling path to keep the counter balanced.

Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
---
sound/soc/img/img-i2s-out.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/sound/soc/img/img-i2s-out.c b/sound/soc/img/img-i2s-out.c
index db052ec17d5d..b56a18e7f3ac 100644
--- a/sound/soc/img/img-i2s-out.c
+++ b/sound/soc/img/img-i2s-out.c
@@ -347,8 +347,10 @@ static int img_i2s_out_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
chan_control_mask = IMG_I2S_OUT_CHAN_CTL_CLKT_MASK;

ret = pm_runtime_get_sync(i2s->dev);
- if (ret < 0)
+ if (ret < 0) {
+ pm_runtime_put_noidle(i2s->dev);
return ret;
+ }

img_i2s_out_disable(i2s);

@@ -488,8 +490,10 @@ static int img_i2s_out_probe(struct platform_device *pdev)
goto err_pm_disable;
}
ret = pm_runtime_get_sync(&pdev->dev);
- if (ret < 0)
+ if (ret < 0) {
+ pm_runtime_put_noidle(&pdev->dev);
goto err_suspend;
+ }

reg = IMG_I2S_OUT_CTL_FRM_SIZE_MASK;
img_i2s_out_writel(i2s, reg, IMG_I2S_OUT_CTL);
--
2.17.1
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