{
    ACPI_STATUS                 Status;
    ACPI_BUFFER                 Buffer;
    ACPI_RESOURCE               *Resource;
    ACPI_RESOURCE               *ResourceEnd;


    ACPI_FUNCTION_TRACE (AcpiWalkResources);


    /* Parameter validation */

    if (!DeviceHandle || !UserFunction || !Name ||
        (!ACPI_COMPARE_NAME (Name, METHOD_NAME__CRS) &&
         !ACPI_COMPARE_NAME (Name, METHOD_NAME__PRS)))
    {
        return_ACPI_STATUS (AE_BAD_PARAMETER);
    }

    /* Get the _CRS or _PRS resource list */

    Buffer.Length = ACPI_ALLOCATE_LOCAL_BUFFER;
    Status = AcpiRsGetMethodData (DeviceHandle, Name, &Buffer);
    if (ACPI_FAILURE (Status))
    {
        return_ACPI_STATUS (Status);
    }

    /* Buffer now contains the resource list */

    Resource = ACPI_CAST_PTR (ACPI_RESOURCE, Buffer.Pointer);
    ResourceEnd = ACPI_ADD_PTR (ACPI_RESOURCE, Buffer.Pointer, Buffer.Length);

    /* Walk the resource list until the EndTag is found (or buffer end) */

    while (Resource < ResourceEnd)
    {
        /* Sanity check the resource */

        if (Resource->Type > ACPI_RESOURCE_TYPE_MAX)
        {
            Status = AE_AML_INVALID_RESOURCE_TYPE;
            break;
        }

        /* Invoke the user function, abort on any error returned */

        Status = UserFunction (Resource, Context);
        if (ACPI_FAILURE (Status))
        {
            if (Status == AE_CTRL_TERMINATE)
            {
                /* This is an OK termination by the user function */

                Status = AE_OK;
            }
            break;
        }

        /* EndTag indicates end-of-list */

        if (Resource->Type == ACPI_RESOURCE_TYPE_END_TAG)
        {
            break;
        }

        /* Get the next resource descriptor */

        Resource = ACPI_ADD_PTR (ACPI_RESOURCE, Resource, Resource->Length);
    }

    ACPI_FREE (Buffer.Pointer);
    return_ACPI_STATUS (Status);
}

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