Re: [PATCH 2/2] PCI: rcar: Handle rcar_pcie_parse_request_of_pci_ranges() failures
From: Lorenzo Pieralisi
Date: Tue Dec 19 2017 - 06:40:02 EST
On Thu, Dec 07, 2017 at 11:15:20AM +0100, Geert Uytterhoeven wrote:
> rcar_pcie_parse_request_of_pci_ranges() can fail and return an error
> code, but this is not checked nor handled.
>
> Fix this by adding the missing error handling.
>
> Fixes: 5d2917d469faab72 ("PCI: rcar: Convert to DT resource parsing API")
> Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
> ---
> drivers/pci/host/pcie-rcar.c | 5 ++++-
> 1 file changed, 4 insertions(+), 1 deletion(-)
Applied to pci/rcar for v4.16.
Thanks,
Lorenzo
> diff --git a/drivers/pci/host/pcie-rcar.c b/drivers/pci/host/pcie-rcar.c
> index 52ab3cb0a0bfe065..95ca4a1feba4b759 100644
> --- a/drivers/pci/host/pcie-rcar.c
> +++ b/drivers/pci/host/pcie-rcar.c
> @@ -1123,7 +1123,9 @@ static int rcar_pcie_probe(struct platform_device *pdev)
>
> INIT_LIST_HEAD(&pcie->resources);
>
> - rcar_pcie_parse_request_of_pci_ranges(pcie);
> + err = rcar_pcie_parse_request_of_pci_ranges(pcie);
> + if (err)
> + goto err_free_bridge;
>
> err = rcar_pcie_get_resources(pcie);
> if (err < 0) {
> @@ -1178,6 +1180,7 @@ static int rcar_pcie_probe(struct platform_device *pdev)
>
> err_free_resource_list:
> pci_free_resource_list(&pcie->resources);
> +err_free_bridge:
> pci_free_host_bridge(bridge);
>
> return err;
> --
> 2.7.4
>