[PATCH] PCI: tegra: fix runtime pm imbalance on error

[Dinghao Liu]

pm_runtime_get_sync() increments the runtime PM usage counter even
it returns an error code. Thus a pairing decrement is needed on
the error handling path to keep the counter balanced.

Also This driver forgets to call pm_runtime_disable() when
pm_runtime_get_sync() returns an error code.

Signed-off-by: Dinghao Liu <dinghao.liu@xxxxxxxxxx>
---
 drivers/pci/controller/pci-tegra.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/pci/controller/pci-tegra.c b/drivers/pci/controller/pci-tegra.c
index 3e64ba6a36a8..00236dd65b5b 100644
--- a/drivers/pci/controller/pci-tegra.c
+++ b/drivers/pci/controller/pci-tegra.c
@@ -2712,7 +2712,7 @@ static int tegra_pcie_probe(struct platform_device *pdev)
 	err = pm_runtime_get_sync(pcie->dev);
 	if (err < 0) {
 		dev_err(dev, "fail to enable pcie controller: %d\n", err);
-		goto teardown_msi;
+		goto pm_runtime_put;
 	}
 
 	host->busnr = bus->start;
@@ -2746,7 +2746,6 @@ static int tegra_pcie_probe(struct platform_device *pdev)
 pm_runtime_put:
 	pm_runtime_put_sync(pcie->dev);
 	pm_runtime_disable(pcie->dev);
-teardown_msi:
 	tegra_pcie_msi_teardown(pcie);
 put_resources:
 	tegra_pcie_put_resources(pcie);
-- 
2.17.1