Re: [PATCH] pci: dwc: Fix NULL pointer dereference due to missing assignment

[Bjorn Helgaas]

On Tue, Feb 28, 2017 at 01:38:18PM +0530, Vivek Gautam wrote:
> Add missing assignment of dw_pci core structure for
> designware-plat.
> 
> Commit 8b130f815a6b ("PCI: dwc: Fix crashes seen due to missing
> assignments") fixed all other platforms, but missed
> designware-plat file.
> 
> Fixes: 442ec4c04d12 ("PCI: dwc: all: Split struct pcie_port into host-only and core structures")
> 
> Cc: Guenter Roeck <linux@xxxxxxxxxxxx>
> Cc: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
> Cc: Kishon Vijay Abraham I <kishon@xxxxxx>
> Cc: Jingoo Han <jingoohan1@xxxxxxxxx>
> Cc: Joao Pinto <Joao.Pinto@xxxxxxxxxxxx>
> Cc: linux-pci@xxxxxxxxxxxxxxx
> Cc: linux-kernel@xxxxxxxxxxxxxxx
> Signed-off-by: Vivek Gautam <vivek.gautam@xxxxxxxxxxxxxx>

Thanks, Vivek!  I folded this into Guenter's patch and added your
Signed-off-by for this designware-plat fix.  I'll ask Linus to pull this
before v4.11-rc1.

> ---
> 
> Based on torvald's master branch.
> Build tested.
> 
>  drivers/pci/dwc/pcie-designware-plat.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/pci/dwc/pcie-designware-plat.c b/drivers/pci/dwc/pcie-designware-plat.c
> index 65250f63515c..b6c832ba39dd 100644
> --- a/drivers/pci/dwc/pcie-designware-plat.c
> +++ b/drivers/pci/dwc/pcie-designware-plat.c
> @@ -104,6 +104,8 @@ static int dw_plat_pcie_probe(struct platform_device *pdev)
>  
>  	pci->dev = dev;
>  
> +	dw_plat_pcie->pci = pci;
> +
>  	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
>  	pci->dbi_base = devm_ioremap_resource(dev, res);
>  	if (IS_ERR(pci->dbi_base))
> -- 
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