ACPI: Fix stale pointer access to flags.lockable

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During hot-remove, acpi_bus_hot_remove_device() calls ACPI _LCK
method when device->flags.lockable is set. However, this device
pointer is stale since the target acpi_device object has been
already kfree'd by acpi_bus_trim().

The flags.lockable indicates whether or not this ACPI object
implements _LCK method. Fix the stable pointer access by replacing
it with acpi_get_handle() to check if _LCK is implemented.

Signed-off-by: Toshi Kani <toshi.kani@hp.com>
Reviewed-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

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Toshi Kani 2012-10-26 13:38:57 +02:00 • committed by Rafael J. Wysocki

parent 594df89a59

commit b3c450c380

1 changed files with 5 additions and 1 deletions

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drivers/acpi/scan.c

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