[PATCH 4.19 128/346] spi: tegra114: fix reference leak in tegra spi ops

[Greg Kroah-Hartman]

From: Zhang Qilong <zhangqilo...@huawei.com>

[ Upstream commit a042184c7fb99961ea083d4ec192614bec671969 ]

pm_runtime_get_sync will increment pm usage counter even it
failed. Forgetting to pm_runtime_put_noidle will result in
reference leak in two callers(tegra_spi_setup and
tegra_spi_resume), so we should fix it.

Fixes: f333a331adfac ("spi/tegra114: add spi driver")
Signed-off-by: Zhang Qilong <zhangqilo...@huawei.com>
Link: https://lore.kernel.org/r/20201103141306.5607-1-zhangqilo...@huawei.com
Signed-off-by: Mark Brown <broo...@kernel.org>
Signed-off-by: Sasha Levin <sas...@kernel.org>
---
 drivers/spi/spi-tegra114.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/spi/spi-tegra114.c b/drivers/spi/spi-tegra114.c
index 09cfae3abce2d..c510b53e5e3f5 100644
--- a/drivers/spi/spi-tegra114.c
+++ b/drivers/spi/spi-tegra114.c
@@ -827,6 +827,7 @@ static int tegra_spi_setup(struct spi_device *spi)
 
        ret = pm_runtime_get_sync(tspi->dev);
        if (ret < 0) {
+               pm_runtime_put_noidle(tspi->dev);
                dev_err(tspi->dev, "pm runtime failed, e = %d\n", ret);
                return ret;
        }
@@ -1252,6 +1253,7 @@ static int tegra_spi_resume(struct device *dev)
 
        ret = pm_runtime_get_sync(dev);
        if (ret < 0) {
+               pm_runtime_put_noidle(dev);
                dev_err(dev, "pm runtime failed, e = %d\n", ret);
                return ret;
        }
-- 
2.27.0