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(parent: b169ba5) | patch
ACPI / hotplug / PCI: Execute _EJ0 under the ACPI scan lock
authorRafael J. Wysocki <rafael.j.wysocki@intel.com>
Mon, 10 Feb 2014 12:36:26 +0000 (13:36 +0100)
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>
Mon, 10 Feb 2014 12:36:26 +0000 (13:36 +0100)
commit21369c77477a7f937174833c8094154f0f995710
treef7919580a770be3dbe3bf388f4237cb4e1b2ecd2tree | snapshot (tar.gz zip)
parentb169ba5ae49a810876f3baa5da5283e95c836527commit | diff
ACPI / hotplug / PCI: Execute _EJ0 under the ACPI scan lock

Since acpi_device_hotplug() assumes that ACPI handles of device
objects passed to it will not become invalid while acpi_scan_lock
is being held, make acpiphp_disable_slot() acquire acpi_scan_lock,
because it generally causes _EJ0 to be executed for one of the
devices in the slot and that may cause its ACPI handle to become
invalid.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
drivers/pci/hotplug/acpiphp_glue.c diff | blob | blame | history