[PATCH] spi: spi-fsl-lpspi: Fix runtime PM imbalance on error

[Dinghao Liu <dinghao.liu@xxxxxxxxxx>]

pm_runtime_get_sync() increments the runtime PM usage counter even
when it 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@xxxxxxxxxx>
---
 drivers/spi/spi-fsl-lpspi.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/spi/spi-fsl-lpspi.c b/drivers/spi/spi-fsl-lpspi.c
index 8b41b70f6f5c..ad1abbb4e197 100644
--- a/drivers/spi/spi-fsl-lpspi.c
+++ b/drivers/spi/spi-fsl-lpspi.c
@@ -941,7 +941,7 @@ static int fsl_lpspi_probe(struct platform_device *pdev)
 	ret = pm_runtime_get_sync(fsl_lpspi->dev);
 	if (ret < 0) {
 		dev_err(fsl_lpspi->dev, "failed to enable clock\n");
-		goto out_controller_put;
+		goto out_pm_get;
 	}
 
 	temp = readl(fsl_lpspi->base + IMX7ULP_PARAM);
@@ -950,13 +950,15 @@ static int fsl_lpspi_probe(struct platform_device *pdev)
 
 	ret = fsl_lpspi_dma_init(&pdev->dev, fsl_lpspi, controller);
 	if (ret == -EPROBE_DEFER)
-		goto out_controller_put;
+		goto out_pm_get;
 
 	if (ret < 0)
 		dev_err(&pdev->dev, "dma setup error %d, use pio\n", ret);
 
 	return 0;
 
+out_pm_get:
+	pm_runtime_put_noidle(fsl_lpspi->dev);
 out_controller_put:
 	spi_controller_put(controller);
 
-- 
2.17.1