Messages in this thread | | | Subject | Re: [PATCH] ACPI / PM: Hold acpi_scan_lock over system PM transitions | From | Toshi Kani <> | Date | Tue, 20 Aug 2013 16:02:03 -0600 |
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On Tue, 2013-08-20 at 01:47 +0200, Rafael J. Wysocki wrote: > From: Rafael J. Wysocki <rafael.j.wysocki@intel.com> > > Bad things happen if ACPI hotplug events are handled during system > PM transitions, especially if devices are removed as a result. > To prevent those bad things from happening, acquire acpi_scan_lock > when a transition is started and release it when that transition > is complete or has been aborted. > > This fixes resume lockup on my test-bed Acer Aspire S5 that happens > when Thunderbolt devices are disconnected from the machine while > suspended. > > Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
The change looks good to me.
Acked-by: Toshi Kani <toshi.kani@hp.com>
Thanks, -Toshi
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