linux-kernel - Re: [PATCH 3/3] PCI: qcom: Potential uninitialized variable in qcom_pcie_suspend

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Message-ID: <20240709051540.GI3820@thinkpad>
Date: Tue, 9 Jul 2024 10:45:40 +0530
From: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
To: Dan Carpenter <dan.carpenter@...aro.org>
Cc: Krishna chaitanya chundru <quic_krichai@...cinc.com>,
	Lorenzo Pieralisi <lpieralisi@...nel.org>,
	Krzysztof Wilczyński <kw@...ux.com>,
	Rob Herring <robh@...nel.org>, Bjorn Helgaas <bhelgaas@...gle.com>,
	linux-pci@...r.kernel.org, linux-arm-msm@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/3] PCI: qcom: Potential uninitialized variable in
 qcom_pcie_suspend_noirq()

On Mon, Jul 08, 2024 at 01:05:38PM -0500, Dan Carpenter wrote:
> Smatch complains that "ret" could be uninitialized if "pcie->icc_mem"
> is NULL and "pm_suspend_target_state == PM_SUSPEND_MEM".  Silence this
> warning by initializing ret to zero.
> 
> Fixes: 78b5f6f8855e ("PCI: qcom: Add OPP support to scale performance")
> Signed-off-by: Dan Carpenter <dan.carpenter@...aro.org>

Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>

- Mani

> ---
>  drivers/pci/controller/dwc/pcie-qcom.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/pci/controller/dwc/pcie-qcom.c b/drivers/pci/controller/dwc/pcie-qcom.c
> index e06c4ad3a72a..74e2acf4ae11 100644
> --- a/drivers/pci/controller/dwc/pcie-qcom.c
> +++ b/drivers/pci/controller/dwc/pcie-qcom.c
> @@ -1633,7 +1633,7 @@ static int qcom_pcie_probe(struct platform_device *pdev)
>  static int qcom_pcie_suspend_noirq(struct device *dev)
>  {
>  	struct qcom_pcie *pcie = dev_get_drvdata(dev);
> -	int ret;
> +	int ret = 0;
>  
>  	/*
>  	 * Set minimum bandwidth required to keep data path functional during
> -- 
> 2.43.0
> 

-- 
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