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PCI: qcom: Fix unbalanced PHY init on probe errors

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commit 83013631f0f9961416abd812e228c8efbc2f6069 upstream.

Undo the PHY initialisation (e.g. balance runtime PM) if host
initialisation fails during probe.

Link: https://lore.kernel.org/r/20220401133854.10421-3-johan+linaro@kernel.org
Fixes: 82a823833f ("PCI: qcom: Add Qualcomm PCIe controller driver")
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Acked-by: Stanimir Varbanov <svarbanov@mm-sol.com>
Cc: stable@vger.kernel.org      # 4.5
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Johan Hovold 2022-04-01 15:38:54 +02:00 committed by Greg Kroah-Hartman
parent c0e129dafc
commit 99fd821f56
1 changed files with 3 additions and 1 deletions
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4
drivers/pci/controller/dwc/pcie-qcom.c
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@ -1451,11 +1451,13 @@ static int qcom_pcie_probe(struct platform_device *pdev)
ret = dw_pcie_host_init(pp);
if (ret) {
dev_err(dev, "cannot initialize host\n");
goto err_pm_runtime_put;
goto err_phy_exit;
}
return 0;
err_phy_exit:
phy_exit(pcie->phy);
err_pm_runtime_put:
pm_runtime_put(dev);
pm_runtime_disable(dev);