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    SubjectFix "buggy BIOS check" when CPUs are hot removed
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    Date
    Fixes a BUG in ACPI hotplugging.

    processor_device_array[pr->id] needs to be set to NULL when removing a
    CPU. Else the "buggy BIOS check" in acpi_processor_start mistakenly
    fires when a CPU is removed from the system and then later re-added.

    Signed-off-by: Alok N Kataria <akataria@vmware.com>
    Signed-off-by: Dan Arai <arai@vmware.com>

    ---
    drivers/acpi/processor_core.c | 1 +
    1 files changed, 1 insertions(+), 0 deletions(-)

    diff --git a/drivers/acpi/processor_core.c
    b/drivers/acpi/processor_core.c
    index 61450f4..0f95f26 100644
    --- a/drivers/acpi/processor_core.c
    +++ b/drivers/acpi/processor_core.c
    @@ -828,6 +828,7 @@ static int acpi_processor_remove(struct acpi_device
    *device, int type)
    }

    processors[pr->id] = NULL;
    + processor_device_array[pr->id] = NULL;

    kfree(pr);

    --
    1.5.4



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