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android_kernel_samsung_univ.../drivers/acpi
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Arnd Bergmann 6986d0d29f ACPI / power: Avoid maybe-uninitialized warning 
commit fe8c470ab87d90e4b5115902dd94eced7e3305c3 upstream.

gcc -O2 cannot always prove that the loop in acpi_power_get_inferred_state()
is enterered at least once, so it assumes that cur_state might not get
initialized:

drivers/acpi/power.c: In function 'acpi_power_get_inferred_state':
drivers/acpi/power.c:222:9: error: 'cur_state' may be used uninitialized in this function [-Werror=maybe-uninitialized]

This sets the variable to zero at the start of the loop, to ensure that
there is well-defined behavior even for an empty list. This gets rid of
the warning.

The warning first showed up when the -Os flag got removed in a bug fix
patch in linux-4.11-rc5.

I would suggest merging this addon patch on top of that bug fix to avoid
introducing a new warning in the stable kernels.

Fixes: 61b79e16c68d (ACPI: Fix incompatibility with mcount-based function graph tracing)
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-27 09:09:33 +02:00
..
acpica ACPICA: acpi_get_sleep_type_data: Reduce warnings 2016-10-07 15:23:48 +02:00
apei ACPI / APEI: Fix NMI notification handling 2017-01-19 20:17:22 +01:00
pmic
ac.c ACPI: Remove FSF mailing addresses 2015-07-08 02:27:32 +02:00
acpi_apd.c ACPI: Remove clk.h include 2015-07-20 10:52:45 -07:00
acpi_cmos_rtc.c
acpi_extlog.c
acpi_ipmi.c ACPI: Remove FSF mailing addresses 2015-07-08 02:27:32 +02:00
acpi_lpat.c
acpi_lpss.c PM / PCI / ACPI: Kick devices that might have been reset by firmware 2015-10-14 02:17:34 +02:00
acpi_memhotplug.c ACPI: Remove FSF mailing addresses 2015-07-08 02:27:32 +02:00
acpi_pad.c ACPI / PAD: power_saving_thread() is not freezable 2015-10-26 04:42:54 +01:00
acpi_platform.c ACPI: Do not create a platform_device for IOAPIC/IOxAPIC 2017-04-08 09:53:31 +02:00
acpi_pnp.c ACPI / scan: constify first argument of struct acpi_scan_handler::match 2015-09-15 02:56:29 +02:00
acpi_processor.c ACPI / processor: Request native thermal interrupt handling via _OSC 2016-05-11 11:21:26 +02:00
acpi_video.c ACPI / video: skip evaluating _DOD when it does not exist 2017-03-26 12:13:17 +02:00
battery.c ACPI: Remove FSF mailing addresses 2015-07-08 02:27:32 +02:00
battery.h
bgrt.c
blacklist.c ACPI / blacklist: Make Dell Latitude 3350 ethernet work 2017-03-30 09:35:20 +02:00
bus.c ACPI / processor: Request native thermal interrupt handling via _OSC 2016-05-11 11:21:26 +02:00
button.c ACPI: Remove FSF mailing addresses 2015-07-08 02:27:32 +02:00
cm_sbs.c ACPI: Remove FSF mailing addresses 2015-07-08 02:27:32 +02:00
container.c ACPI: Remove FSF mailing addresses 2015-07-08 02:27:32 +02:00
cppc_acpi.c ACPI / CPPC: Prevent cpc_desc_ptr points to the invalid data 2016-09-07 08:32:38 +02:00
custom_method.c
debugfs.c ACPI: fix acpi_debugfs_init prototype 2015-08-07 02:55:18 +02:00
device_pm.c PM / PCI / ACPI: Kick devices that might have been reset by firmware 2015-10-14 02:17:34 +02:00
device_sysfs.c ACPI / property: avoid leaking format string into kobject name 2016-01-08 01:01:41 +01:00
dock.c ACPI: Remove FSF mailing addresses 2015-07-08 02:27:32 +02:00
ec_sys.c ACPI / EC: Fix broken 64bit big-endian users of 'global_lock' 2015-10-04 11:36:07 +01:00
ec.c ACPI / EC: Work around method reentrancy limit in ACPICA for _Qxx 2016-08-20 18:09:27 +02:00
event.c
fan.c ACPI: Remove FSF mailing addresses 2015-07-08 02:27:32 +02:00
glue.c Merge branch 'acpi-pci' 2015-11-07 01:30:10 +01:00
gsi.c acpi/gsi: Cleanup acpi_register_gsi 2015-10-13 19:01:25 +02:00
hed.c ACPI: Remove FSF mailing addresses 2015-07-08 02:27:32 +02:00
int340x_thermal.c ACPI: Eliminate CONFIG_.*{, _MODULE} #ifdef in favor of IS_ENABLED() 2015-09-15 03:05:45 +02:00
internal.h ACPI / processor: Request native thermal interrupt handling via _OSC 2016-05-11 11:21:26 +02:00
ioapic.c
Kconfig Merge branches 'acpica', 'acpi-video' and 'device-properties' 2015-12-04 14:01:17 +01:00
Makefile ACPI: Fix incompatibility with mcount-based function graph tracing 2017-04-08 09:53:31 +02:00
nfit.c acpi, nfit, libnvdimm: fix interleave set cookie calculation (64-bit comparison) 2017-04-21 09:30:05 +02:00
nfit.h acpi, nfit: check for the correct event code in notifications 2016-10-28 03:01:34 -04:00
numa.c ACPI / SRAT: fix SRAT parsing order with both LAPIC and X2APIC present 2016-09-07 08:32:45 +02:00
nvs.c
osl.c ACPI / osi: Fix an issue that acpi_osi=!* cannot disable ACPICA internal strings 2016-06-01 12:15:50 -07:00
pci_irq.c Revert "PCI, x86: Implement pcibios_alloc_irq() and pcibios_free_irq()" 2016-04-20 15:42:16 +09:00
pci_link.c ACPI / PCI: Remove duplicated penalty on SCI IRQ 2015-09-26 01:53:07 +02:00
pci_root.c x86/PCI/ACPI: Fix regression caused by commit 4d6b4e69a2 2015-12-02 02:30:15 +01:00
pci_slot.c ACPI: Remove FSF mailing addresses 2015-07-08 02:27:32 +02:00
power.c ACPI / power: Avoid maybe-uninitialized warning 2017-04-27 09:09:33 +02:00
proc.c ACPI: change acpi_sleep_proc_init() to return void 2015-09-15 03:03:15 +02:00
processor_core.c
processor_driver.c ACPI / processor: Fix thermal cooling device regression 2015-12-21 03:41:49 +01:00
processor_idle.c ACPI: Remove FSF mailing addresses 2015-07-08 02:27:32 +02:00
processor_pdc.c
processor_perflib.c Merge branch 'pm-cpufreq' 2015-09-01 15:52:35 +02:00
processor_thermal.c ACPI: Remove FSF mailing addresses 2015-07-08 02:27:32 +02:00
processor_throttling.c ACPI: Remove FSF mailing addresses 2015-07-08 02:27:32 +02:00
property.c ACPI / property: Fix subnode lookup scope for data-only subnodes 2015-10-22 00:54:03 +02:00
reboot.c
resource.c PCI: ACPI: IA64: fix IO port generic range check 2016-04-12 09:08:37 -07:00
sbs.c ACPI: Remove FSF mailing addresses 2015-07-08 02:27:32 +02:00
sbshc.c Revert "ACPI / SBS: Add 5 us delay to fix SBS hangs on MacBook" 2015-11-16 23:26:45 +01:00
sbshc.h
scan.c ACPI / drivers: replace acpi_probe_lock spinlock with mutex 2016-09-07 08:32:45 +02:00
sleep.c ACPI / PM: Runtime resume devices when waking from hibernate 2016-04-12 09:09:03 -07:00
sleep.h
sysfs.c ACPI / sysfs: fix error code in get_status() 2016-09-07 08:32:45 +02:00
tables.c ACPI / tables: test the correct variable 2015-10-15 01:31:24 +02:00
thermal.c linux/thermal.h: rename KELVIN_TO_CELSIUS to DECI_KELVIN_TO_CELSIUS 2015-10-10 11:32:30 +08:00
utils.c ACPI: Remove FSF mailing addresses 2015-07-08 02:27:32 +02:00
video_detect.c ACPI / video: Add force_native quirk for HP Pavilion dv6 2017-01-09 08:07:44 +01:00
wakeup.c