[PATCH -next] PCI: rcar: Fix PM reference leak in rcar_pcie_ep_probe()

From: Zou Wei
Date: Fri May 21 2021 - 08:47:16 EST


pm_runtime_get_sync will increment pm usage counter even it failed.
Forgetting to putting operation will result in reference leak here.
Fix it by replacing it with pm_runtime_resume_and_get to keep usage
counter balanced.

Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Signed-off-by: Zou Wei <zou_wei@xxxxxxxxxx>
---
drivers/pci/controller/pcie-rcar-ep.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pci/controller/pcie-rcar-ep.c b/drivers/pci/controller/pcie-rcar-ep.c
index b4a288e..8a8c46c 100644
--- a/drivers/pci/controller/pcie-rcar-ep.c
+++ b/drivers/pci/controller/pcie-rcar-ep.c
@@ -492,7 +492,7 @@ static int rcar_pcie_ep_probe(struct platform_device *pdev)
pcie->dev = dev;

pm_runtime_enable(dev);
- err = pm_runtime_get_sync(dev);
+ err = pm_runtime_resume_and_get(dev);
if (err < 0) {
dev_err(dev, "pm_runtime_get_sync failed\n");
goto err_pm_disable;
--
2.6.2