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ad07277e82
linux/drivers/acpi
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Rafael J. Wysocki ad07277e82 ACPI / PM: Hold acpi_scan_lock over system PM transitions 
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 PM 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.

Also fixes the analogous problem for Mika Westerberg on an
Intel DZ77RE-75K board.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Toshi Kani <toshi.kani@hp.com>
2013-08-21 01:23:53 +02:00
..
acpica ACPICA: expose OSI version 2013-07-18 01:29:14 +02:00
apei Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2013-07-04 10:29:23 -07:00
ac.c ACPI / AC: Add sleep quirk for Thinkpad e530 2013-05-12 14:03:15 +02:00
acpi_cmos_rtc.c ACPI: Add CMOS RTC Operation Region handler support 2013-06-27 21:35:37 +02:00
acpi_i2c.c ACPI / I2C: Use parent's ACPI_HANDLE() in acpi_i2c_register_devices() 2013-04-02 15:30:41 +02:00
acpi_ipmi.c
acpi_lpss.c Merge branch 'acpi-lpss' 2013-06-28 12:59:02 +02:00
acpi_memhotplug.c ACPI / memhotplug: Fix a stale pointer in error path 2013-07-15 01:26:18 +02:00
acpi_pad.c ACPI / acpi_pad: Used PTR_RET 2013-03-25 00:13:15 +01:00
acpi_platform.c ACPI / scan: Add special handler for Intel Lynxpoint LPSS devices 2013-03-21 22:44:38 +01:00
acpi_processor.c acpi: delete __cpuinit usage from all acpi files 2013-07-14 19:36:58 -04:00
battery.c ACPI: introduce helper function acpi_execute_simple_method() 2013-07-15 01:33:10 +02:00
bgrt.c efi: Fix the ACPI BGRT driver for images located in EFI boot services memory 2012-09-29 12:21:03 -07:00
blacklist.c acpi: delete module.h include from files explicitly not needing it 2011-10-31 19:30:33 -04:00
bus.c ACPI: Drop ACPI bus notifier call chain 2013-07-15 01:33:11 +02:00
button.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-05-01 17:51:54 -07:00
cm_sbs.c
container.c Merge branch 'acpi-assorted' 2013-04-28 01:54:08 +02:00
custom_method.c The sweeping change is to make add_taint() explicitly indicate whether to disable 2013-02-25 15:41:43 -08:00
debugfs.c acpi: add export.h to files using THIS_MODULE/EXPORT_SYMBOL 2011-10-31 19:30:34 -04:00
device_pm.c ACPI / PM: Fix corner case in acpi_bus_update_power() 2013-07-04 13:22:11 +02:00
dock.c ACPI / dock: Drop unnecessary local variable from dock_add() 2013-07-15 01:33:12 +02:00
ec_sys.c ACPI / EC: access user space with get_user()/put_user() 2013-06-19 23:29:20 +02:00
ec.c ACPI: introduce helper function acpi_has_method() 2013-07-15 01:33:10 +02:00
event.c acpi: add export.h to files using THIS_MODULE/EXPORT_SYMBOL 2011-10-31 19:30:34 -04:00
fan.c ACPI / fan: Initialize acpi_state variable 2013-07-04 13:33:25 +02:00
glue.c Merge branch 'acpi-assorted' 2013-06-28 13:00:38 +02:00
hed.c ACPI: Remove useless type argument of driver .remove() operation 2013-01-26 00:37:24 +01:00
internal.h ACPI / video / i915: No ACPI backlight if firmware expects Windows 8 2013-07-18 02:08:06 +02:00
Kconfig Merge branch 'acpi-assorted' 2013-04-28 01:54:08 +02:00
Makefile Merge branch 'acpi-assorted' 2013-06-28 13:00:38 +02:00
numa.c x86, ACPI, mm: Revert movablemem_map support 2013-03-02 09:34:39 -08:00
nvs.c ACPI / PM: print physical addresses consistently with other parts of kernel 2012-03-30 02:46:57 -04:00
osl.c Merge branch 'acpi-assorted' 2013-06-29 15:03:44 +02:00
pci_irq.c PCI/ACPI: Don't cache _PRT, and don't associate them with bus numbers 2013-02-16 11:58:34 -07:00
pci_link.c ACPI: Set length even for TYPE_END_TAG acpi resource 2013-03-24 01:00:38 +01:00
pci_root.c PCI changes for the v3.11 merge window: 2013-07-03 16:31:35 -07:00
pci_slot.c ACPI / PCI: Make bus registration and unregistration symmetric 2013-07-23 03:58:42 +02:00
power.c ACPI: introduce helper function acpi_execute_simple_method() 2013-07-15 01:33:10 +02:00
proc.c procfs: new helper - PDE_DATA(inode) 2013-04-09 14:13:32 -04:00
processor_core.c acpi: delete __cpuinit usage from all acpi files 2013-07-14 19:36:58 -04:00
processor_driver.c acpi: delete __cpuinit usage from all acpi files 2013-07-14 19:36:58 -04:00
processor_idle.c acpi: delete __cpuinit usage from all acpi files 2013-07-14 19:36:58 -04:00
processor_perflib.c ACPI: introduce helper function acpi_has_method() 2013-07-15 01:33:10 +02:00
processor_thermal.c ACPI / processor_thermal: avoid null pointer deference error 2013-03-25 23:01:01 +01:00
processor_throttling.c ACPI: suppress compiler warnings in processor_throttling.c 2013-03-25 00:05:48 +01:00
reboot.c Revert "ACPI: ignore FADT reset-reg-sup flag" 2012-04-20 11:19:35 -07:00
resource.c ACPI: introduce helper function acpi_has_method() 2013-07-15 01:33:10 +02:00
sbs.c proc: Supply a function to remove a proc entry by PDE 2013-05-01 17:29:46 -04:00
sbshc.c ACPI: Remove useless type argument of driver .remove() operation 2013-01-26 00:37:24 +01:00
sbshc.h
scan.c Merge branch 'acpi-cleanup' 2013-07-23 03:58:07 +02:00
sleep.c ACPI / PM: Hold acpi_scan_lock over system PM transitions 2013-08-21 01:23:53 +02:00
sleep.h ACPI: Drop power resources driver 2013-01-17 14:11:06 +01:00
sysfs.c Merge branch 'akpm' (updates from Andrew Morton) 2013-07-03 17:12:13 -07:00
tables.c ACPICA: Cleanup table handler naming conflicts. 2013-01-11 13:10:16 +01:00
thermal.c ACPI: introduce helper function acpi_execute_simple_method() 2013-07-15 01:33:10 +02:00
utils.c ACPI: introduce two helper functions for _EJ0 and _LCK 2013-07-15 01:33:10 +02:00
video_detect.c Merge branch 'acpi-cleanup' 2013-07-23 03:58:07 +02:00
video.c Merge branch 'acpi-cleanup' 2013-07-23 03:58:07 +02:00
wakeup.c