Re: [PATCH] PCI: tegra194: Fix PM error handling in tegra_pcie_config_ep

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Thanks for pushing the change.

Reviewed-by: Vidya Sagar <vidyas@xxxxxxxxxx>

On 6/2/2022 8:49 AM, Miaoqian Lin wrote:
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The pm_runtime_enable() will increase power disable depth.
if dw_pcie_ep_init() fails, we should use pm_runtime_disable()
to balance it pm_runtime_enable().
Add missing pm_runtime_disable() for tegra_pcie_config_ep()

Fixes: c57247f940e8 ("PCI: tegra: Add support for PCIe endpoint mode in Tegra194")
Signed-off-by: Miaoqian Lin <linmq006@xxxxxxxxx>
---
  drivers/pci/controller/dwc/pcie-tegra194.c | 1 +
  1 file changed, 1 insertion(+)

diff --git a/drivers/pci/controller/dwc/pcie-tegra194.c b/drivers/pci/controller/dwc/pcie-tegra194.c
index cc2678490162..d992371a36e6 100644
--- a/drivers/pci/controller/dwc/pcie-tegra194.c
+++ b/drivers/pci/controller/dwc/pcie-tegra194.c
@@ -1949,6 +1949,7 @@ static int tegra_pcie_config_ep(struct tegra194_pcie *pcie,
         if (ret) {
                 dev_err(dev, "Failed to initialize DWC Endpoint subsystem: %d\n",
                         ret);
+               pm_runtime_disable(dev);
                 return ret;
         }

--
2.25.1




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