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[v2] spi: tegra20-slink: Fix runtime PM imbalance on error

Message ID 20200523122909.25247-1-dinghao.liu@zju.edu.cn
State New
Headers show
Series [v2] spi: tegra20-slink: Fix runtime PM imbalance on error | expand

Commit Message

Dinghao Liu May 23, 2020, 12:29 p.m. UTC
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@zju.edu.cn>


v2: - Use pm_runtime_put_noidle() instead of pm_runtime_put().
 drivers/spi/spi-tegra20-slink.c | 1 +
 1 file changed, 1 insertion(+)
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diff --git a/drivers/spi/spi-tegra20-slink.c b/drivers/spi/spi-tegra20-slink.c
index 7f4d932dade7..a07b72e9c344 100644
--- a/drivers/spi/spi-tegra20-slink.c
+++ b/drivers/spi/spi-tegra20-slink.c
@@ -1118,6 +1118,7 @@  static int tegra_slink_probe(struct platform_device *pdev)
 	ret = pm_runtime_get_sync(&pdev->dev);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "pm runtime get failed, e = %d\n", ret);
+		pm_runtime_put_noidle(&pdev->dev);
 		goto exit_pm_disable;
 	tspi->def_command_reg  = SLINK_M_S;