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PCI: tegra194: Fix PM error handling in tegra_pcie_config_ep()

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[ Upstream commit e8fbd344a5 ]

pm_runtime_enable() will increase power disable depth.  If
dw_pcie_ep_init() fails, we should use pm_runtime_disable() to balance it
with pm_runtime_enable().

Add missing pm_runtime_disable() for tegra_pcie_config_ep().

Fixes: c57247f940 ("PCI: tegra: Add support for PCIe endpoint mode in Tegra194")
Link: https://lore.kernel.org/r/20220602031910.55859-1-linmq006@gmail.com
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Vidya Sagar <vidyas@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Miaoqian Lin
2022-06-02 07:19:08 +04:00
committed by Greg Kroah-Hartman
parent b0e82f95fd
commit cdf92a0aee
1 changed files with 1 additions and 0 deletions
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1
drivers/pci/controller/dwc/pcie-tegra194.c
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@@ -1970,6 +1970,7 @@ static int tegra_pcie_config_ep(struct tegra_pcie_dw *pcie,
if (ret) {
dev_err(dev, "Failed to initialize DWC Endpoint subsystem: %d\n",
ret);
pm_runtime_disable(dev);
return ret;
}