Re: [PATCH v2] PCI: brcmstb: Fix refcount leak in brcm_pcie_probe

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On Fri, Jun 03, 2022 at 05:08:49PM +0400, Miaoqian Lin wrote:
> of_parse_phandle() returns a node pointer with refcount
> incremented, we should use of_node_put() on it when not need anymore.
> Add missing of_node_put() to avoid refcount leak.
> 
> Fixes: 40ca1bf580ef ("PCI: brcmstb: Add MSI support")
> Signed-off-by: Miaoqian Lin <linmq006@xxxxxxxxx>

Applied with Rob's reviewed-by to pci/ctrl/brcmstb for v5.20, thanks!

> ---
> changes in v2:
> - update Fixes tag.
> v1 Link: https://lore.kernel.org/r/20220602125003.10723-1-linmq006@xxxxxxxxx
> ---
>  drivers/pci/controller/pcie-brcmstb.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/pci/controller/pcie-brcmstb.c b/drivers/pci/controller/pcie-brcmstb.c
> index 375c0c40bbf8..e3b673441a11 100644
> --- a/drivers/pci/controller/pcie-brcmstb.c
> +++ b/drivers/pci/controller/pcie-brcmstb.c
> @@ -1597,8 +1597,10 @@ static int brcm_pcie_probe(struct platform_device *pdev)
>  		ret = brcm_pcie_enable_msi(pcie);
>  		if (ret) {
>  			dev_err(pcie->dev, "probe of internal MSI failed");
> +			of_node_put(msi_np);
>  			goto fail;
>  		}
> +		of_node_put(msi_np);
>  	}
>  
>  	bridge->ops = pcie->type == BCM7425 ? &brcm_pcie_ops32 : &brcm_pcie_ops;
> -- 
> 2.25.1
> 
> 
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