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PCI: rcar: Fix runtime PM imbalance in rcar_pcie_ep_probe() 

pm_runtime_get_sync() will increase the runtime PM counter
even it returns an error. Thus a pairing decrement is needed
to prevent refcount leak. Fix this by replacing this API with
pm_runtime_resume_and_get(), which will not change the runtime
PM counter on error.

Link: https://lore.kernel.org/r/20210408072402.15069-1-dinghao.liu@zju.edu.cn
Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
This commit is contained in:
Dinghao Liu 2021-04-08 15:24:02 +08:00 committed by Lorenzo Pieralisi
parent e73f0f0ee7
commit 1e29cd9983
1 changed files with 2 additions and 2 deletions
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4
drivers/pci/controller/pcie-rcar-ep.c
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@ -492,9 +492,9 @@ 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");
dev_err(dev, "pm_runtime_resume_and_get failed\n");
goto err_pm_disable;
}