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    SubjectRe: [ACPI] PATCH-ACPI based CPU hotplug[2/6]-ACPI Eject interface support
    > In acpi_eject_store(), eject_operation() is called regardless of the
    > result of acpi_bus_trim(). I think that eject_operation() should be
    > called only when acpi_bus_trim() returns success. Otherwise, a
    > device stil being online will be ejected forcibly.
    > Two steps might be needed to do this.
    > 1. Modify acpi_bus_trim() to return success only when all the
    > acpi_bus_remove() are done successfully.
    > 2. Modify acpi_eject_store() to see the result and call eject_operation()
    > only when the result is success.
    Hi Kei-san,
    Your idea and the patch both looks good to me.
    Thanks for eye balling the code and detecting the corner cases like this.
    > Here is a patch just to show what I have in mind. It is still based on
    > the recursion, so please fix it as appropriate ;)

    I will merge this with my non-recursion version of the patch and post it ASAP.

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