[PNPACPI] Ignore devices that have no resources
matthieu castet [Fri, 6 Jan 2006 06:31:00 +0000 (01:31 -0500)]
Ignore devices that don't have a _CRS method.
They are useless for the PNP layer as they don't provide any resources.

Cc: Adam Belay <ambx1@neo.rr.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Len Brown <len.brown@intel.com>

drivers/pnp/pnpacpi/core.c

index 816479a..e77d1fe 100644 (file)
@@ -131,7 +131,8 @@ static int __init pnpacpi_add_device(struct acpi_device *device)
        struct pnp_id *dev_id;
        struct pnp_dev *dev;
 
-       if (!ispnpidacpi(acpi_device_hid(device)) ||
+       status = acpi_get_handle(device->handle, "_CRS", &temp);
+       if (ACPI_FAILURE(status) || !ispnpidacpi(acpi_device_hid(device)) ||
                is_exclusive_device(device))
                return 0;