AuxXxilium/linux_dsm_epyc7002
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40bf66ec97
linux_dsm_epyc7002/drivers/acpi
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Lin Ming 40bf66ec97 ACPI / PM: Fix resource_lock dead lock in acpi_power_on_device 
Commit 0090def("ACPI: Add interface to register/unregister device
to/from power resources") used resource_lock to protect the devices list
that relies on power resource. It caused a mutex dead lock, as below

    acpi_power_on ---> lock resource_lock
      __acpi_power_on
        acpi_power_on_device
          acpi_power_get_inferred_state
            acpi_power_get_list_state ---> lock resource_lock

This patch adds a new mutex "devices_lock" to protect the devices list
and calls acpi_power_on_device in acpi_power_on, instead of
__acpi_power_on, after the resource_lock is released.

[rjw: Changed data type of a boolean variable to bool.]

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-09-14 00:26:33 +02:00
..
acpica Merge branch 'drm-fixes-3.6' of git://people.freedesktop.org/~agd5f/linux into drm-fixes 2012-08-22 09:18:49 +10:00
apei ACPI, APEI: Fixup common access width firmware bug 2012-07-14 11:01:42 -04:00
ac.c ACPI / PM: Fix unused function warnings for CONFIG_PM_SLEEP 2012-08-10 13:35:32 +02:00
acpi_ipmi.c IPMI/ACPI: Add the IPMI opregion driver to enable ACPI to access BMC controller 2010-12-14 00:22:14 -05:00
acpi_memhotplug.c ACPI: Add _OST support for ACPI memory hotplug 2012-06-04 01:09:21 -04:00
acpi_pad.c Merge branches 'acpi_pad', 'acpica', 'apei-bugzilla-43282', 'battery', 'cpuidle-coupled', 'cpuidle-tweaks', 'intel_idle-ivb', 'ost', 'red-hat-bz-772730', 'thermal', 'thermal-spear' and 'turbostat-v2' into release 2012-07-26 00:03:58 -04:00
battery.c ACPI / PM: Fix unused function warnings for CONFIG_PM_SLEEP 2012-08-10 13:35:32 +02:00
bgrt.c acpi, bgrd: Add missing <linux/io.h> to drivers/acpi/bgrt.c 2012-05-17 07:18:26 -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 / PM: Infer parent power state from child if unknown, v2 2012-09-14 00:26:24 +02:00
button.c ACPI / PM: Fix unused function warnings for CONFIG_PM_SLEEP 2012-08-10 13:35:32 +02:00
cm_sbs.c ACPI: Move definition of PREFIX from acpi_bus.h to internal..h 2009-08-28 19:57:27 -04:00
container.c ACPI: Add _OST support for ACPI container hotplug 2012-06-04 01:09:22 -04:00
custom_method.c ACPI: Split out custom_method functionality into an own driver 2011-05-29 01:50:40 -04:00
debugfs.c acpi: add export.h to files using THIS_MODULE/EXPORT_SYMBOL 2011-10-31 19:30:34 -04:00
dock.c module_param: make bool parameters really bool (drivers & misc) 2012-01-13 09:32:20 +10:30
ec_sys.c simple_open: automatically convert to simple_open() 2012-04-05 15:25:50 -07:00
ec.c Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux 2012-03-30 16:45:39 -07:00
event.c acpi: add export.h to files using THIS_MODULE/EXPORT_SYMBOL 2011-10-31 19:30:34 -04:00
fan.c ACPI / PM: Fix unused function warnings for CONFIG_PM_SLEEP 2012-08-10 13:35:32 +02:00
glue.c drivers/acpi/glue: revert accidental license-related 6b66d95895 bits 2012-07-25 14:24:13 -04:00
hed.c ACPI Hardware Error Device (PNP0C33) support 2010-05-19 22:40:24 -04:00
internal.h ACPI: Cleanup custom_method debug stuff 2011-05-29 01:50:04 -04:00
Kconfig drivers: acpi: Fix dependency for ACPI_HOTPLUG_CPU 2012-06-04 00:07:33 -04:00
Makefile ACPI: Add support for exposing BGRT data 2012-03-30 04:09:24 -04:00
numa.c ACPI: Only count valid srat memory structures 2012-08-03 00:15:53 -04:00
nvs.c ACPI / PM: print physical addresses consistently with other parts of kernel 2012-03-30 02:46:57 -04:00
osl.c ACPICA: Remove argument of acpi_os_wait_events_complete 2012-06-01 11:51:53 -04:00
pci_bind.c PCI / ACPI / PM: Platform support for PCI PME wake-up 2010-02-22 16:21:02 -08:00
pci_irq.c PCI/PM/Runtime: make PCI traces quieter 2012-01-06 12:11:16 -08:00
pci_link.c acpi: use KERN_CONT in printk() continuation lines 2012-05-08 08:55:26 -07:00
pci_root.c Merge branches 'delete-gts-bfs', 'misc', 'novell-bugzilla-757888-numa' and 'osc-pcie' into base 2012-08-03 00:31:23 -04:00
pci_slot.c module_param: make bool parameters really bool (drivers & misc) 2012-01-13 09:32:20 +10:30
power.c ACPI / PM: Fix resource_lock dead lock in acpi_power_on_device 2012-09-14 00:26:33 +02:00
proc.c acpi: add export.h to files using THIS_MODULE/EXPORT_SYMBOL 2011-10-31 19:30:34 -04:00
processor_core.c cpufreq / ACPI: Fix not loading acpi-cpufreq driver regression 2012-07-12 22:39:32 +02:00
processor_driver.c Merge branches 'delete-gts-bfs', 'misc', 'novell-bugzilla-757888-numa' and 'osc-pcie' into base 2012-08-03 00:31:23 -04:00
processor_idle.c Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux 2012-07-26 14:28:55 -07:00
processor_perflib.c ACPI: Ignore invalid _PSS entries, but use valid ones 2012-05-08 01:56:37 -04:00
processor_thermal.c ACPI: Do cpufreq clamping for throttling per package v2 2012-03-22 02:16:14 -04:00
processor_throttling.c ACPI throttling: fix endian bug in acpi_read_throttling_status() 2012-03-30 16:06:12 -04:00
reboot.c Revert "ACPI: ignore FADT reset-reg-sup flag" 2012-04-20 11:19:35 -07:00
sbs.c ACPI / PM: Fix unused function warnings for CONFIG_PM_SLEEP 2012-08-10 13:35:32 +02:00
sbshc.c acpi: add module.h to files implicitly using/relying on it. 2011-10-31 19:30:32 -04:00
sbshc.h
scan.c Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux 2012-07-26 14:28:55 -07:00
sleep.c Merge branches 'delete-gts-bfs', 'misc', 'novell-bugzilla-757888-numa' and 'osc-pcie' into base 2012-08-03 00:31:23 -04:00
sleep.h ACPI: static sleep_states[] and acpi_gts_bfs_check 2010-10-19 13:44:37 -04:00
sysfs.c ACPI: replace strlen("string") with sizeof("string") -1 2012-07-26 21:35:28 -04:00
tables.c ACPI: delete the "acpi=ht" boot option 2010-03-14 20:58:38 -04:00
thermal.c ACPI / PM: Fix unused function warnings for CONFIG_PM_SLEEP 2012-08-10 13:35:32 +02:00
utils.c ACPI: Add an interface to evaluate _OST 2012-06-04 01:09:14 -04:00
video_detect.c acpi/video_detect: blacklist samsung x360 2012-07-28 00:11:48 -04:00
video.c Merge branches 'acpi_pad-bugzilla-42981', 'apei-bugzilla-43282', 'video-bugzilla-43168', 'bugzilla-40002' and 'bugfix-misc' into release 2012-06-30 00:53:50 -04:00
wakeup.c ACPI / Wakeup: Enable button GPEs unconditionally during initialization 2011-02-12 01:39:53 +01:00