[PATCH] PCI: imx: fix device node reference leak in imx_pcie_probe

[Frank Li]

On Wed, Sep 03, 2025 at 09:51:50PM +0800, Miaoqian Lin wrote:

Subject: PCI: imx: Add missing of_node_put() to fix device node reference leak

> As the doc of of_parse_phandle() states:
> "The device_node pointer with refcount incremented.  Use
>  * of_node_put() on it when done."

Needn't this paragaph

Frank
> Add missing of_node_put() after of_parse_phandle() call to properly
> release the device node reference.
>
> Found via static analysis.
>
> Fixes: 1df82ec46600 ("PCI: imx: Add workaround for e10728, IMX7d PCIe PLL failure")
> Cc: stable at vger.kernel.org
> Signed-off-by: Miaoqian Lin <linmq006 at gmail.com>
> ---
>  drivers/pci/controller/dwc/pci-imx6.c | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/drivers/pci/controller/dwc/pci-imx6.c b/drivers/pci/controller/dwc/pci-imx6.c
> index 80e48746bbaf..618bc4b08a8b 100644
> --- a/drivers/pci/controller/dwc/pci-imx6.c
> +++ b/drivers/pci/controller/dwc/pci-imx6.c
> @@ -1636,6 +1636,7 @@ static int imx_pcie_probe(struct platform_device *pdev)
>  		struct resource res;
>
>  		ret = of_address_to_resource(np, 0, &res);
> +		of_node_put(np);
>  		if (ret) {
>  			dev_err(dev, "Unable to map PCIe PHY\n");
>  			return ret;
> --
> 2.35.1
>