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Rafael J. Wysocki 0516e42c7b ACPI: EC: Reference count query handlers under lock 
[ Upstream commit 3df663a147fe077a6ee8444ec626738946e65547 ]

There is a race condition in acpi_ec_get_query_handler()
theoretically allowing query handlers to go away before refernce
counting them.

In order to avoid it, call kref_get() on query handlers under
ec->mutex.

Also simplify the code a bit while at it.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-10-01 20:40:05 +02:00
..
acpica
ACPICA: Do not increment operation_region reference counts for field units
2020-08-21 11:01:59 +02:00
apei
x86/mm: split vmalloc_sync_all()
2020-04-02 17:20:26 +02:00
arm64
ACPI/IORT: Fix off-by-one check in iort_dev_find_its_id()
2019-08-25 10:51:31 +02:00
dptf
ACPI / platform: Add support for build-in properties
2016-11-10 00:30:29 +01:00
nfit
nfit: acpi_nfit_ctl(): Check out_obj->type in the right place
2019-03-23 13:19:49 +01:00
pmic
ACPI / PMIC: xpower: Fix power_table addresses
2018-03-24 11:00:18 +01:00
ac.c
…
acpi_amba.c
ACPI / amba: Remove CLK_IS_ROOT
2016-04-27 23:42:57 +02:00
acpi_apd.c
Merge branch 'device-properties'
2016-11-11 23:23:02 +01:00
acpi_cmos_rtc.c
char/genrtc: x86: remove remnants of asm/rtc.h
2016-06-04 00:20:07 +02:00
acpi_configfs.c
ACPI: Rename configfs.c to acpi_configfs.c to prevent link error
2016-07-11 15:13:36 +02:00
acpi_dbg.c
ACPI / debugger: Fix regression introduced by IS_ERR_VALUE() removal
2016-07-05 23:02:34 +02:00
acpi_extlog.c
…
acpi_ipmi.c
…
acpi_lpat.c
ACPI / lpat: make it explicitly non-modular
2016-07-16 03:08:10 +02:00
acpi_lpss.c
ACPI / LPSS: Ignore acpi_device_fix_up_power() return value
2019-12-05 15:34:18 +01:00
acpi_memhotplug.c
mm/memory_hotplug: make add_memory() take the device_hotplug_lock
2019-11-28 18:28:51 +01:00
acpi_pad.c
ACPI: acpi_pad: Fix memory leak in power saving threads
2018-05-30 07:50:43 +02:00
acpi_platform.c
ACPI / platform: Add SMB0001 HID to forbidden_id_list
2018-11-27 16:09:41 +01:00
acpi_pnp.c
ACPI / PNP: constify device IDs
2016-01-04 22:10:30 +01:00
acpi_processor.c
Revert "x86/acpi: Set persistent cpuid <-> nodeid mapping when booting"
2017-12-20 10:07:26 +01:00
acpi_video.c
ACPI / video: Extend chassis-type detection with a "Lunch Box" check
2019-04-05 22:29:15 +02:00
acpi_watchdog.c
ACPI: watchdog: Allow disabling WDAT at boot
2020-03-20 09:07:56 +01:00
battery.c
ACPI / battery: Add sysfs representation after checking _BST
2016-08-31 00:35:16 +02:00
battery.h
…
bgrt.c
drivers/acpi: make bgrt driver explicitly non-modular
2016-03-09 23:46:07 +01:00
blacklist.c
ACPI / blacklist: Make Dell Latitude 3350 ethernet work
2017-03-22 12:43:38 +01:00
bus.c
ACPI: bus: Fix NULL pointer check in acpi_bus_get_private_data()
2019-12-21 10:42:05 +01:00
button.c
Revert "ACPI / button: Change default behavior to lid_init_state=open"
2017-06-07 12:07:47 +02:00
cm_sbs.c
…
container.c
…
cppc_acpi.c
ACPI: CPPC: Fix reference count leak in acpi_cppc_processor_probe()
2020-06-20 10:24:09 +02:00
custom_method.c
ACPI: custom_method: fix memory leaks
2019-10-05 12:30:25 +02:00
debugfs.c
…
device_pm.c
ACPI: PM: Avoid using power resources if there are none for D0
2020-06-20 10:24:09 +02:00
device_sysfs.c
ACPI / device_sysfs: Avoid OF modalias creation for removed device
2019-03-23 13:19:46 +01:00
dock.c
ACPI / dock: make dock explicitly non-modular
2016-07-16 03:08:08 +02:00
ec_sys.c
ACPI: EC: Fix debugfs_create_*() usage
2018-04-13 19:48:10 +02:00
ec.c
ACPI: EC: Reference count query handlers under lock
2020-10-01 20:40:05 +02:00
event.c
…
evged.c
ACPI: GED: use correct trigger type field in _Exx / _Lxx handling
2020-06-20 10:24:13 +02:00
fan.c
ACPI / fan: Fix error reading cur_state
2016-10-10 02:20:43 +02:00
glue.c
ACPI / scan: Prefer devices without _HID/_CID for _ADR matching
2018-01-31 12:55:52 +01:00
gsi.c
ACPI: Rename acpi_gsi_get_irq_type to acpi_dev_get_irq_type and export symbol
2016-01-01 03:20:25 +01:00
hed.c
…
internal.h
ACPI: EC: Fix debugfs_create_*() usage
2018-04-13 19:48:10 +02:00
ioapic.c
ACPI: ioapic: Clear on-stack resource before using it
2017-08-30 10:21:55 +02:00
Kconfig
TTY/Serial patches for 4.9-rc1
2016-10-03 20:11:49 -07:00
Makefile
ACPI: Fix incompatibility with mcount-based function graph tracing
2017-04-08 09:30:34 +02:00
numa.c
ACPI: NUMA: Use correct type for printing addresses on i386-PAE
2019-02-20 10:18:28 +01:00
nvs.c
…
osi.c
ACPI / osi: Collect _OSI handling into one single file
2016-05-05 00:13:53 +02:00
osl.c
ACPI: OSL: only free map once in osl.c
2019-12-21 10:42:05 +01:00
pci_irq.c
ACPI / PCI: fix acpi_pci_irq_enable() memory leak
2019-10-05 12:30:26 +02:00
pci_link.c
ACPI/PCI: pci_link: Include PIRQ_PENALTY_PCI_USING for ISA IRQs
2016-10-24 14:18:14 +02:00
pci_mcfg.c
PCI/ACPI: Add generic MCFG table handling
2016-06-10 18:27:59 -05:00
pci_root.c
PCI/ACPI: Correct error message for ASPM disabling
2019-11-25 09:52:26 +01:00
pci_slot.c
ACPI / PCI: make pci_slot explicitly non-modular
2016-07-16 03:05:29 +02:00
power.c
ACPI: power: Skip duplicate power resource references in _PRx
2019-01-16 22:12:32 +01:00
proc.c
…
processor_core.c
Revert "x86/acpi: Set persistent cpuid <-> nodeid mapping when booting"
2017-12-20 10:07:26 +01:00
processor_driver.c
ACPI/processor: Replace racy task affinity logic
2018-03-24 11:00:09 +01:00
processor_idle.c
nmi_backtrace: generate one-line reports for idle cpus
2016-10-07 18:46:30 -07:00
processor_pdc.c
…
processor_perflib.c
ACPI: processor_perflib: Do not send _PPC change notification if not ready
2018-05-30 07:50:24 +02:00
processor_thermal.c
…
processor_throttling.c
ACPI/processor: Replace racy task affinity logic
2018-03-24 11:00:09 +01:00
property.c
ACPI / property: Allow holes in reference properties
2016-10-11 22:44:00 +02:00
reboot.c
…
resource.c
PCI: ACPI: IA64: fix IO port generic range check
2016-03-22 23:07:49 +01:00
sbs.c
ACPI / SBS: Fix GPE storm on recent MacBookPro's
2019-04-20 09:07:52 +02:00
sbshc.c
ACPI / SBS: Fix rare oops when removing modules
2019-11-25 09:53:39 +01:00
sbshc.h
…
scan.c
ACPI: PM: Avoid using power resources if there are none for D0
2020-06-20 10:24:09 +02:00
sleep.c
ACPI / PM: save NVS memory for ASUS 1025C laptop
2018-08-22 07:47:15 +02:00
sleep.h
ACPI / power: Delay turning off unused power resources after suspend
2018-03-24 11:00:20 +01:00
spcr.c
ACPI: parse SPCR and enable matching console
2016-09-28 17:46:46 +02:00
sysfs.c
ACPI: sysfs: Fix pm_profile_attr type
2020-06-30 15:38:44 -04:00
tables.c
ACPI / tables: Remove duplicated include from tables.c
2016-09-17 01:03:32 +02:00
thermal.c
thermal: Enhance thermal_zone_device_update for events
2016-09-27 14:35:21 +08:00
utils.c
nfit: make DIMM DSMs optional
2016-07-19 12:32:39 -07:00
video_detect.c
Revert "ACPI / video: Add force_native quirk for HP Pavilion dv6"
2020-05-20 08:15:27 +02:00
wakeup.c
…