diff mbox series

[stable-4.9] PCI: qcom: Fix unbalanced PHY init on probe errors

Message ID 20220610120411.10619-1-johan+linaro@kernel.org (mailing list archive)
State Handled Elsewhere
Headers show
Series [stable-4.9] PCI: qcom: Fix unbalanced PHY init on probe errors | expand

Commit Message

Johan Hovold June 10, 2022, 12:04 p.m. UTC
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: 82a823833f4e ("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
[ johan: adjust context to 4.9 ]
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
---
 drivers/pci/host/pcie-qcom.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

Comments

Greg Kroah-Hartman June 13, 2022, 9:23 a.m. UTC | #1
On Fri, Jun 10, 2022 at 02:04:11PM +0200, Johan Hovold wrote:
> 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: 82a823833f4e ("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
> [ johan: adjust context to 4.9 ]
> Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
> ---
>  drivers/pci/host/pcie-qcom.c | 7 ++++++-
>  1 file changed, 6 insertions(+), 1 deletion(-)

All now queued up, thanks.

greg k-h
diff mbox series

Patch

diff --git a/drivers/pci/host/pcie-qcom.c b/drivers/pci/host/pcie-qcom.c
index aeb46f8c7087..4e21ca3c067e 100644
--- a/drivers/pci/host/pcie-qcom.c
+++ b/drivers/pci/host/pcie-qcom.c
@@ -562,10 +562,15 @@  static int qcom_pcie_probe(struct platform_device *pdev)
 	ret = dw_pcie_host_init(pp);
 	if (ret) {
 		dev_err(dev, "cannot initialize host\n");
-		return ret;
+		goto err_phy_exit;
 	}
 
 	return 0;
+
+err_phy_exit:
+	phy_exit(pcie->phy);
+
+	return ret;
 }
 
 static const struct of_device_id qcom_pcie_match[] = {