Hi Dinghao,
> From: Dinghao Liu, Sent: Sunday, June 7, 2020 6:32 PM
>
> pm_runtime_get_sync() increments the runtime PM usage counter even
> the call returns an error code. Thus a corresponding decrement is
> needed on the error handling path to keep the counter balanced.
>
> Signed-off-by: Dinghao Liu <dinghao.liu@xxxxxxxxxx>
Thank you for your patch! I think we can add Fixes tag like below.
Fixes: 0df6150e7ceb ("PCI: rcar: Use runtime PM to control controller clock")
And, I reviewed this patch. So,
Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx>
Best regards,
Yoshihiro Shimoda
> ---
>
> Changelog:
>
> v2: - Remove unnecessary 'err_pm_put' label.
> Refine commit message.
> ---
> drivers/pci/controller/pcie-rcar.c | 6 ++----
> 1 file changed, 2 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/pci/controller/pcie-rcar.c b/drivers/pci/controller/pcie-rcar.c
> index 759c6542c5c8..f9595ab54bc4 100644
> --- a/drivers/pci/controller/pcie-rcar.c
> +++ b/drivers/pci/controller/pcie-rcar.c
> @@ -1143,7 +1143,7 @@ static int rcar_pcie_probe(struct platform_device *pdev)
> err = rcar_pcie_get_resources(pcie);
> if (err < 0) {
> dev_err(dev, "failed to request resources: %d\n", err);
> - goto err_pm_put;
> + goto err_pm_disable;
> }
>
> err = clk_prepare_enable(pcie->bus_clk);
> @@ -1206,10 +1206,8 @@ static int rcar_pcie_probe(struct platform_device *pdev)
> irq_dispose_mapping(pcie->msi.irq2);
> irq_dispose_mapping(pcie->msi.irq1);
>
> -err_pm_put:
> - pm_runtime_put(dev);
> -
> err_pm_disable:
> + pm_runtime_put(dev);
> pm_runtime_disable(dev);
> pci_free_resource_list(&pcie->resources);
>
> --
> 2.17.1
