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db74ef82ca8b21a4b007dbecbd3eace3f17ee894
linux/drivers/hwmon
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Guenter Roeck 915defac2a hwmon: (f71805f) Use request_muxed_region for Super-IO accesses 
[ Upstream commit 73e6ff71a7 ]

Super-IO accesses may fail on a system with no or unmapped LPC bus.

Unable to handle kernel paging request at virtual address ffffffbffee0002e
pgd = ffffffc1d68d4000
[ffffffbffee0002e] *pgd=0000000000000000, *pud=0000000000000000
Internal error: Oops: 94000046 [#1] PREEMPT SMP
Modules linked in: f71805f(+) hwmon
CPU: 3 PID: 1659 Comm: insmod Not tainted 4.5.0+ #88
Hardware name: linux,dummy-virt (DT)
task: ffffffc1f6665400 ti: ffffffc1d6418000 task.ti: ffffffc1d6418000
PC is at f71805f_find+0x6c/0x358 [f71805f]

Also, other drivers may attempt to access the LPC bus at the same time,
resulting in undefined behavior.

Use request_muxed_region() to ensure that IO access on the requested
address space is supported, and to ensure that access by multiple
drivers is synchronized.

Fixes: e53004e20a ("hwmon: New f71805f driver")
Reported-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Reported-by: John Garry <john.garry@huawei.com>
Cc: John Garry <john.garry@huawei.com>
Acked-by: John Garry <john.garry@huawei.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-06-11 12:24:00 +02:00
..
pmbus
hwmon: (pmbus) Fix page count auto-detection.
2018-11-21 09:27:30 +01:00
ab8500.c
hwmon: (ab8500) Call kernel_power_off instead of pm_power_off
2014-10-03 08:19:02 -07:00
abituguru3.c
hwmon: drop owner assignment from platform_drivers
2014-10-20 16:20:36 +02:00
abituguru.c
hwmon: drop owner assignment from platform_drivers
2014-10-20 16:20:36 +02:00
abx500.c
hwmon: (abx500) drop the use of IRQF_NO_SUSPEND
2015-10-14 07:57:14 -07:00
abx500.h
hwmon: Add ST-Ericsson ABX500 hwmon driver
2013-04-16 18:27:52 -07:00
acpi_power_meter.c
ACPI: Clean up inclusions of ACPI header files
2013-12-07 01:03:14 +01:00
ad7314.c
spi: Drop owner assignment from spi_drivers
2015-10-28 10:30:17 +09:00
ad7414.c
hwmon: (ad7414) Convert to devm_hwmon_device_register_with_groups
2014-08-04 07:01:35 -07:00
ad7418.c
hwmon: (ad7418) Convert to devm_hwmon_device_register_with_groups
2014-08-04 07:01:35 -07:00
adc128d818.c
hwmon: (adc128d818) Do proper sign extension
2015-01-25 21:24:00 -08:00
adcxx.c
spi: Drop owner assignment from spi_drivers
2015-10-28 10:30:17 +09:00
adm1021.c
hwmon: (adm1021) Avoid forward declaration
2014-08-04 07:01:36 -07:00
adm1025.c
hwmon: (adm1025) Fix vrm write operation
2014-08-05 19:44:36 -07:00
adm1026.c
hwmon: (adm1026) Fix vrm write operation
2014-08-05 19:44:36 -07:00
adm1029.c
hwmon: (adm1029) Convert to devm_hwmon_device_register_with_groups
2014-08-04 07:01:35 -07:00
adm1031.c
hwmon: (adm1031) Convert to devm_hwmon_device_register_with_groups
2014-08-04 07:01:37 -07:00
adm9240.c
hwmon: (adm9240) Convert to devm_hwmon_device_register_with_groups
2014-08-04 07:01:37 -07:00
ads1015.c
hwmon: (ads1015) Handle negative conversion values correctly
2016-03-03 15:07:25 -08:00
ads7828.c
hwmon: (ads7828) Enable internal reference
2016-06-07 18:14:34 -07:00
ads7871.c
spi: Drop owner assignment from spi_drivers
2015-10-28 10:30:17 +09:00
adt7x10.c
hwmon: (adt7x10) Add alarm interrupt support
2013-04-07 21:16:38 -07:00
adt7x10.h
hwmon: (adt7x10) Add alarm interrupt support
2013-04-07 21:16:38 -07:00
adt7310.c
spi: Drop owner assignment from spi_drivers
2015-10-28 10:30:17 +09:00
adt7410.c
hwmon: (adt7x10) Add alarm interrupt support
2013-04-07 21:16:38 -07:00
adt7411.c
hwmon: (adt7411) set bit 3 in CFG1 register
2016-10-07 15:23:42 +02:00
adt7462.c
hwmon: (adt7462) Convert to devm_hwmon_device_register_with_groups
2014-08-04 07:01:39 -07:00
adt7470.c
hwmon: (adt7470) Convert to devm_hwmon_device_register_with_groups
2014-08-04 07:01:39 -07:00
adt7475.c
hwmon: (adt7475) Make adt7475_read_word() return errors
2018-10-10 08:52:09 +02:00
amc6821.c
hwmon: (amc6821) sign extension temperature
2017-01-12 11:22:48 +01:00
applesmc.c
hwmon : (applesmc) Fix uninitialized variables warnings
2015-11-15 21:52:39 -08:00
asb100.c
hwmon: (asb100) Fix vrm write operation
2014-08-05 19:44:36 -07:00
asc7621.c
hwmon: (asc7621) Make map tables const
2014-08-04 07:01:38 -07:00
asus_atk0110.c
hwmon: (asus_atk0110) fix uninitialized data access
2017-12-25 14:22:12 +01:00
atxp1.c
hwmon: (atxp1) Drop auto-detection
2015-05-31 22:58:36 -07:00
coretemp.c
hwmon: (coretemp) Increase limit of maximum core ID from 32 to 128.
2015-10-14 07:57:14 -07:00
da9052-hwmon.c
hwmon: drop owner assignment from platform_drivers
2014-10-20 16:20:36 +02:00
da9055-hwmon.c
hwmon: drop owner assignment from platform_drivers
2014-10-20 16:20:36 +02:00
dell-smm-hwmon.c
hwmon: (dell-smm) Cache fan_type() calls and change fan detection
2016-07-27 09:47:37 -07:00
dme1737.c
hwmon: drop owner assignment from platform_drivers
2014-10-20 16:20:36 +02:00
ds620.c
hwmon: (ds620) Fix overflows seen when writing temperature limits
2017-01-12 11:22:48 +01:00
ds1621.c
hwmon: (ds1621) Update zbits after conversion rate change
2014-08-28 11:18:47 -07:00
emc6w201.c
hwmon: (emc6w201) Fix temperature limit range
2014-08-05 17:49:12 -07:00
emc1403.c
hwmon: Make regmap configs const
2014-08-04 07:01:35 -07:00
emc2103.c
hwmon: (emc2103) Convert to devm_hwmon_device_register_with_groups
2014-08-04 07:01:40 -07:00
f71805f.c
hwmon: (f71805f) Use request_muxed_region for Super-IO accesses
2019-06-11 12:24:00 +02:00
f71882fg.c
hwmon: (f71882fg) Add support for f81768d
2015-08-09 13:44:26 -07:00
f75375s.c
hwmon: (f75375s) Don't crash the kernel unnecessarily
2013-10-13 16:16:27 -07:00
fam15h_power.c
hwmon: (fam15h_power) Add max compute unit accumulated power
2015-10-31 15:43:41 -07:00
fschmd.c
hwmon: Fix checkpatch warning 'quoted string split across lines'
2013-04-07 21:16:40 -07:00
g760a.c
hwmon: (g760a) Convert to devm_hwmon_device_register_with_groups
2014-08-04 07:01:37 -07:00
g762.c
hwmon: (g762) Fix overflows and crash seen when writing limit attributes
2017-01-12 11:22:48 +01:00
gl518sm.c
hwmon: (gl518sm) Convert to devm_hwmon_device_register_with_groups
2014-08-04 07:01:36 -07:00
gl520sm.c
hwmon: (gl520sm) Fix overflows and crash seen when writing into limit attributes
2017-10-08 10:14:17 +02:00
gpio-fan.c
hwmon: (gpio-fan) Remove un-necessary speed_index lookup for thermal hook
2016-03-03 15:07:25 -08:00
hih6130.c
hwmon: (hih6130) Fix missing hih6130->write_length setting
2014-08-05 19:40:27 -07:00
htu21.c
hwmon: (htu21) Convert to devm_hwmon_device_register_with_groups
2014-08-04 07:01:35 -07:00
hwmon-vid.c
hwmon: (hwmon-vid) Add __maybe_unused attribute to dummy variable
2013-09-10 06:28:17 -07:00
hwmon.c
hwmon: Do not accept invalid name attributes
2014-03-03 08:01:06 -08:00
i5k_amb.c
hwmon: drop owner assignment from platform_drivers
2014-10-20 16:20:36 +02:00
i5500_temp.c
hwmon: (i5500_temp) Convert to use ATTRIBUTE_GROUPS macro
2015-01-24 14:16:22 +01:00
ibmaem.c
hwmon: ibmaem: Use ktime_get_ns()
2014-07-23 15:01:44 -07:00
ibmpex.c
hwmon: (ibmpex) Allow format string checking
2015-03-09 09:59:35 -07:00
ibmpowernv.c
hwmon: (ibmpowernv) Remove bogus __init annotations
2018-11-27 16:08:01 +01:00
iio_hwmon.c
hwmon: (iio_hwmon) fix memory leak in name attribute
2016-09-07 08:32:46 +02:00
ina2xx.c
hwmon: (ina2xx) Fix current value calculation
2018-12-17 21:55:10 +01:00
ina209.c
hwmon: (ina209) Convert to use devm_hwmon_device_register_with_groups
2013-10-18 09:11:57 -07:00
it87.c
hwmon: (it87) Add support for IT8732F
2015-08-09 13:44:27 -07:00
jc42.c
hwmon: (jc42) Add support for additional IDT temperature sensors
2015-03-09 09:59:35 -07:00
jz4740-hwmon.c
hwmon: drop owner assignment from platform_drivers
2014-10-20 16:20:36 +02:00
k8temp.c
hwmon: remove DEFINE_PCI_DEVICE_TABLE macro
2014-01-14 21:36:30 -08:00
k10temp.c
hwmon: (k10temp) Remove duplicate pci-id define
2015-11-09 10:14:29 +01:00
Kconfig
hwmon: (sht15) Select CONFIG_BITREVERSE
2015-12-18 08:19:52 -08:00
lineage-pem.c
hwmon: (lineage-pem) Convert to devm_hwmon_device_register_with_groups
2014-08-04 07:01:37 -07:00
lm63.c
hwmon: (lm63) Fix smatch warnings
2014-08-04 07:01:36 -07:00
lm70.c
spi: Drop owner assignment from spi_drivers
2015-10-28 10:30:17 +09:00
lm73.c
hwmon: (lm73) Convert to use devm_hwmon_device_register_with_groups
2013-10-13 16:16:28 -07:00
lm75.c
hwmon: (lm75) Add support for TMP75C
2015-10-14 07:57:14 -07:00
lm75.h
hwmon: (lm75.h) Update header inclusion
2013-03-18 21:19:49 +01:00
lm77.c
hwmon: (lm77) Prevent overflow problem when writing large limits
2014-07-31 09:41:46 -07:00
lm78.c
hwmon: drop owner assignment from platform_drivers
2014-10-20 16:20:36 +02:00
lm80.c
hwmon: (lm80) Fix missing unlock on error in set_fan_div()
2019-02-23 09:05:13 +01:00
lm83.c
hwmon: (lm83) Convert to use devm_hwmon_device_register_with_groups
2014-05-21 16:02:26 -07:00
lm85.c
hwmon: (lm85) use find_closest() in x_TO_REG() functions
2015-04-17 09:03:55 -04:00
lm87.c
hwmon: (lm87) Fix vrm write operation
2014-08-05 19:44:42 -07:00
lm90.c
hwmon: (lm90) Convert to use hwmon_device_register_with_groups
2014-04-04 18:01:35 +02:00
lm92.c
hwmon: (lm92) Prevent overflow problem when writing large limits
2014-08-05 17:48:52 -07:00
lm93.c
hwmon: (lm93) Convert to devm_hwmon_device_register_with_groups
2014-08-04 07:01:36 -07:00
lm95234.c
hwmon: (lm95234) Add support for LM95233
2014-12-02 06:11:53 -08:00
lm95241.c
hwmon: (lm95241) Avoid initializing the same field twice
2014-03-03 08:01:04 -08:00
lm95245.c
hwmon: (lm95245) Add support for LM95235
2014-12-02 03:44:18 -08:00
ltc2945.c
hwmon: Make regmap configs const
2014-08-04 07:01:35 -07:00
ltc4151.c
hwmon: (ltc4151) Convert to devm_hwmon_device_register_with_groups
2014-06-12 08:36:47 -07:00
ltc4215.c
hwmon: (ltc4215) Convert to devm_hwmon_device_register_with_groups
2014-03-03 08:01:05 -08:00
ltc4222.c
hwmon: Make regmap configs const
2014-08-04 07:01:35 -07:00
ltc4245.c
hwmon: (ltc4245) Remove devicetree conditionals
2014-03-03 08:01:05 -08:00
ltc4260.c
hwmon: Make regmap configs const
2014-08-04 07:01:35 -07:00
ltc4261.c
hwmon: (ltc4261) fix coccinelle warnings
2013-10-18 09:12:00 -07:00
Makefile
Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
2015-11-10 15:00:03 -08:00
max197.c
hwmon: (max197) Constify platform_device_id
2015-05-31 22:58:36 -07:00
max1111.c
hwmon: (max1111) Return -ENODEV from max1111_read_channel if not instantiated
2016-04-20 15:41:52 +09:00
max1619.c
hwmon: (max1619) Convert to use devm_hwmon_device_register_with_groups
2014-05-21 16:02:25 -07:00
max1668.c
hwmon: (max1668) Make max1668_addr_list array const
2014-08-04 07:01:39 -07:00
max6639.c
hwmon: (max6639) Make normal_i2c array const
2014-08-04 07:01:39 -07:00
max6642.c
Update Jean Delvare's e-mail address
2014-01-29 20:40:08 +01:00
max6650.c
hwmon: (max6650) Introduce local 'dev' variable
2014-03-03 08:01:06 -08:00
max6697.c
hwmon: (max6697) Use of_property_read_bool at appropriate places
2014-08-04 07:01:40 -07:00
max16065.c
hwmon: (max16065) Use PTR_ERR_OR_ZERO
2014-08-04 07:01:38 -07:00
max31790.c
hwmon: (max31790) Fix dereference of ERR_PTR
2015-10-14 07:57:14 -07:00
mc13783-adc.c
hwmon: drop owner assignment from platform_drivers
2014-10-20 16:20:36 +02:00
mcp3021.c
hwmon: (mcp3021) Fix broken output scaling
2015-07-01 13:56:27 -07:00
menf21bmc_hwmon.c
Merge branch 'platform/remove_owner' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux into driver-core-next
2014-11-03 19:53:56 -08:00
nct6683.c
hwmon: (nct6683) Add missing sysfs attribute initialization
2015-05-29 17:47:42 -07:00
nct6775.c
hwmon: (nct6775) Fix writing pwmX_mode
2018-05-30 07:49:10 +02:00
nct7802.c
hwmon: (nct7802) Fix overflows seen when writing into limit attributes
2017-01-12 11:22:48 +01:00
nct7904.c
hwmon: (nct7904) Export I2C module alias information
2015-08-05 08:31:59 -07:00
ntc_thermistor.c
thermal: consistently use int for temperatures
2015-08-03 23:15:50 +08:00
pc87360.c
hwmon: drop owner assignment from platform_drivers
2014-10-20 16:20:36 +02:00
pc87427.c
hwmon: (pc87427) Use request_muxed_region for Super-IO accesses
2019-06-11 12:23:59 +02:00
pcf8591.c
Update Jean Delvare's e-mail address
2014-01-29 20:40:08 +01:00
powr1220.c
hwmon: Add support for Lattice's POWR1220 power manager IC
2014-08-04 07:01:33 -07:00
pwm-fan.c
hwmon: (pwm-fan) Fix module autoload for OF platform driver
2015-09-20 17:50:19 -07:00
s3c-hwmon.c
hwmon: drop owner assignment from platform_drivers
2014-10-20 16:20:36 +02:00
sch56xx-common.c
hwmon: Fix checkpatch warning 'quoted string split across lines'
2013-04-07 21:16:40 -07:00
sch56xx-common.h
watchdog: sch56xx: Use watchdog core
2012-05-30 07:55:38 +02:00
sch5627.c
hwmon: drop owner assignment from platform_drivers
2014-10-20 16:20:36 +02:00
sch5636.c
hwmon: drop owner assignment from platform_drivers
2014-10-20 16:20:36 +02:00
scpi-hwmon.c
hwmon: (scpi) Fix module autoload
2017-01-12 11:22:48 +01:00
sht15.c
hwmon:change sht15_reverse()
2015-08-10 23:00:10 -07:00
sht21.c
hwmon: (sht21) Convert to devm_hwmon_device_register_with_groups
2014-08-04 07:01:38 -07:00
shtc1.c
hwmon: add support for Sensirion SHTC1 sensor
2014-06-12 08:36:48 -07:00
sis5595.c
hwmon: drop owner assignment from platform_drivers
2014-10-20 16:20:36 +02:00
smm665.c
hwmon: (smm665) Convert to devm_hwmon_device_register_with_groups
2014-08-04 07:01:37 -07:00
smsc47b397.c
hwmon: (smsc47b397) Use request_muxed_region for Super-IO accesses
2019-06-11 12:23:59 +02:00
smsc47m1.c
hwmon: (smsc47m1) Use request_muxed_region for Super-IO accesses
2019-06-11 12:23:59 +02:00
smsc47m192.c
hwmon: (smsc47m192) Convert to devm_hwmon_device_register_with_groups
2014-08-04 07:01:39 -07:00
tc74.c
hwmon: add driver for Microchip TC74
2015-06-21 22:54:53 -07:00
thmc50.c
hwmon: (thmc50) Convert to devm_hwmon_device_register_with_groups
2014-08-04 07:01:39 -07:00
tmp102.c
hwmon: (tmp102) Force wait for conversion time for the first valid data
2015-12-10 08:14:22 -08:00
tmp103.c
hwmon: (tmp103) Fix resource leak bug in tmp103 temperature sensor driver
2014-09-22 11:11:48 -07:00
tmp401.c
hwmon: (tmp401) Do not auto-detect chip on I2C address 0x37
2015-05-29 13:37:06 -07:00
tmp421.c
hwmon: (tmp421) Drop FSF mailing address
2014-08-04 07:01:38 -07:00
twl4030-madc-hwmon.c
hwmon: drop owner assignment from platform_drivers
2014-10-20 16:20:36 +02:00
ultra45_env.c
hwmon: drop owner assignment from platform_drivers
2014-10-20 16:20:36 +02:00
vexpress.c
hwmon: (pwm-fan, vexpress) Constify of_device_id array
2015-03-16 13:00:32 -07:00
via686a.c
hwmon: drop owner assignment from platform_drivers
2014-10-20 16:20:36 +02:00
via-cputemp.c
hwmon: drop owner assignment from platform_drivers
2014-10-20 16:20:36 +02:00
vt1211.c
hwmon: (vt1211) Use request_muxed_region for Super-IO accesses
2019-06-11 12:23:59 +02:00
vt8231.c
hwmon: drop owner assignment from platform_drivers
2014-10-20 16:20:36 +02:00
w83l785ts.c
hwmon: Avoid initializing the same field twice
2014-04-04 18:01:34 +02:00
w83l786ng.c
hwmon: (w83l786ng) Convert to devm_hwmon_device_register_with_groups
2014-08-04 07:01:34 -07:00
w83627ehf.c
hwmon: (w83627ehf) Use swap() in w82627ehf_swap_tempreg()
2015-07-03 14:39:06 +02:00
w83627hf.c
hwmon: drop owner assignment from platform_drivers
2014-10-20 16:20:36 +02:00
w83781d.c
hwmon: drop owner assignment from platform_drivers
2014-10-20 16:20:36 +02:00
w83791d.c
hwmon: (w83791d) Fix vrm write operation
2014-08-05 19:44:42 -07:00
w83792d.c
hwmon: (w83792d) Additional PWM outputs support
2015-07-03 14:39:05 +02:00
w83793.c
hwmon: (w83793) Fix vrm write operation
2014-08-05 19:44:42 -07:00
w83795.c
hwmon: (w83795) temp4_type has writable permission
2018-12-17 21:55:10 +01:00
wm831x-hwmon.c
hwmon: drop owner assignment from platform_drivers
2014-10-20 16:20:36 +02:00
wm8350-hwmon.c
hwmon: drop owner assignment from platform_drivers
2014-10-20 16:20:36 +02:00