linux-kernel - Re: [PATCH 2/2] PCI: qcom: fix unbalanced phy init on probe errors

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Message-ID: <20220401122721.GA87767@bhelgaas>
Date:   Fri, 1 Apr 2022 07:27:21 -0500
From:   Bjorn Helgaas <helgaas@...nel.org>
To:     Johan Hovold <johan+linaro@...nel.org>
Cc:     Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Stanimir Varbanov <svarbanov@...sol.com>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Rob Herring <robh@...nel.org>,
        Krzysztof Wilczyński <kw@...ux.com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        linux-pci@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org, stable@...r.kernel.org
Subject: Re: [PATCH 2/2] PCI: qcom: fix unbalanced phy init on probe errors

In subject, capitalize "Fix" and "PHY" to match previous commits and
your commit log.  Same for other patch.

On Fri, Apr 01, 2022 at 02:10:54PM +0200, Johan Hovold wrote:
> Make sure to undo the PHY initialisation (e.g. balance runtime PM) in
> case host initialisation fails during probe.
> 
> Fixes: 82a823833f4e ("PCI: qcom: Add Qualcomm PCIe controller driver")
> Cc: stable@...r.kernel.org      # 4.5
> Cc: Stanimir Varbanov <svarbanov@...sol.com>
> Signed-off-by: Johan Hovold <johan+linaro@...nel.org>
> ---
>  drivers/pci/controller/dwc/pcie-qcom.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/pci/controller/dwc/pcie-qcom.c b/drivers/pci/controller/dwc/pcie-qcom.c
> index 0b0bd71f1bd2..df47986bda29 100644
> --- a/drivers/pci/controller/dwc/pcie-qcom.c
> +++ b/drivers/pci/controller/dwc/pcie-qcom.c
> @@ -1624,11 +1624,13 @@ 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);
> -- 
> 2.35.1
>