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    Subject[PATCH 3/16][BUG] ACPI pci_slot: Fix _STA evaluation (Not for mainline!)
    Fix the problem that pci slots that doesn't have _STA are not
    detected. If the device doesn't have _STA, we must assume it is always
    there.

    Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
    ---
    drivers/acpi/pci_slot.c | 5 ++---
    1 file changed, 2 insertions(+), 3 deletions(-)

    Index: linux-2.6.25-rc6/drivers/acpi/pci_slot.c
    ===================================================================
    --- linux-2.6.25-rc6.orig/drivers/acpi/pci_slot.c
    +++ linux-2.6.25-rc6/drivers/acpi/pci_slot.c
    @@ -76,9 +76,8 @@ check_slot(acpi_handle handle, int *devi

    if (check_sta_before_sun) {
    /* If SxFy doesn't have _STA, we just assume it's there */
    - acpi_evaluate_integer(handle, "_STA", NULL, &sta);
    -
    - if (!(sta & ACPI_STA_DEVICE_PRESENT)) {
    + status = acpi_evaluate_integer(handle, "_STA", NULL, &sta);
    + if (ACPI_SUCCESS(status) && !(sta & ACPI_STA_DEVICE_PRESENT)) {
    retval = -1;
    goto out;
    }



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