ASoC: img-spdif-in: Fix runtime PM imbalance on error

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>
Link: https://lore.kernel.org/r/20200527084326.4131-1-dinghao.liu@zju.edu.cn
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/img/img-spdif-in.c b/sound/soc/img/img-spdif-in.c
index fd639f4..46ff8a3 100644 (file)
--- a/sound/soc/img/img-spdif-in.c
+++ b/sound/soc/img/img-spdif-in.c
@@ -753,8 +753,10 @@ static int img_spdif_in_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;
+       }
 
        rst = devm_reset_control_get_exclusive(&pdev->dev, "rst");
        if (IS_ERR(rst)) {