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    Subject[PATCH] x86: check boundary in count/setup_resource called by get_current_resources
    [PATCH] x86: check boundary in count/setup_resource called by get_current_resources

    need to check info->res_num less than PCI_BUS_NUM_RESOURCES, so
    info->bus->resource[info->res_num] = res will not beyond of bus resource array
    when acpi resutrn too many resource entries.

    Signed-off-by: Yinghai Lu <yinghai.lu@sun.com>

    Index: linux-2.6/arch/x86/pci/acpi.c
    ===================================================================
    --- linux-2.6.orig/arch/x86/pci/acpi.c
    +++ linux-2.6/arch/x86/pci/acpi.c
    @@ -77,9 +77,13 @@ count_resource(struct acpi_resource *acp
    struct acpi_resource_address64 addr;
    acpi_status status;

    + if (info->res_num >= PCI_BUS_NUM_RESOURCES)
    + return AE_OK;
    +
    status = resource_to_addr(acpi_res, &addr);
    if (ACPI_SUCCESS(status))
    info->res_num++;
    +
    return AE_OK;
    }

    @@ -93,6 +97,9 @@ setup_resource(struct acpi_resource *acp
    unsigned long flags;
    struct resource *root;

    + if (info->res_num >= PCI_BUS_NUM_RESOURCES)
    + return AE_OK;
    +
    status = resource_to_addr(acpi_res, &addr);
    if (!ACPI_SUCCESS(status))
    return AE_OK;
    -
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