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661a888602
linux/drivers/power
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Krzysztof Kozlowski 661a888602 power: charger-manager: Fix NULL pointer exception with missing cm-fuel-gauge 
NULL pointer exception happens during charger-manager probe if
'cm-fuel-gauge' property is not present.

[    2.448536] Unable to handle kernel NULL pointer dereference at virtual address 00000000
[    2.456572] pgd = c0004000
[    2.459217] [00000000] *pgd=00000000
[    2.462759] Internal error: Oops: 5 [#1] PREEMPT SMP ARM
[    2.468047] Modules linked in:
[    2.471089] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.17.0-rc6-00251-ge44cf96cd525-dirty #969
[    2.479765] task: ea890000 ti: ea87a000 task.ti: ea87a000
[    2.485161] PC is at strcmp+0x4/0x30
[    2.488719] LR is at power_supply_match_device_by_name+0x10/0x1c
[    2.494695] pc : [<c01f4220>]    lr : [<c030fe38>]    psr: a0000113
[    2.494695] sp : ea87bde0  ip : 00000000  fp : eaa97010
[    2.506150] r10: 00000004  r9 : ea97269c  r8 : ea3bbfd0
[    2.511360] r7 : eaa97000  r6 : c030fe28  r5 : 00000000  r4 : ea3b0000
[    2.517869] r3 : 0000006d  r2 : 00000000  r1 : 00000000  r0 : c057c195
[    2.524381] Flags: NzCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment kernel
[    2.531671] Control: 10c5387d  Table: 4000404a  DAC: 00000015
[    2.537399] Process swapper/0 (pid: 1, stack limit = 0xea87a240)
[    2.543388] Stack: (0xea87bde0 to 0xea87c000)
[    2.547733] bde0: ea3b0210 c026b1c8 eaa97010 eaa97000 eaa97010 eabb60a8 ea3b0210 00000000
[    2.555891] be00: 00000008 ea2db210 ea1a3410 c030fee0 ea3bbf90 c03138fc c068969c c013526c
[    2.564050] be20: eaa040c0 00000000 c068969c 00000000 eaa040c0 ea2da300 00000002 00000000
[    2.572208] be40: 00000001 ea2da3c0 00000000 00000001 00000000 eaa97010 c068969c 00000000
[    2.580367] be60: 00000000 c068969c 00000000 00000002 00000000 c026b71c c026b6f0 eaa97010
[    2.588527] be80: c0e82530 c026a330 00000000 eaa97010 c068969c eaa97044 00000000 c061df50
[    2.596686] bea0: ea87a000 c026a4dc 00000000 c068969c c026a448 c0268b5c ea8054a8 eaa8fd50
[    2.604845] bec0: c068969c ea2db180 c06801f8 c0269b18 c0590f68 c068969c c0656c98 c068969c
[    2.613004] bee0: c0656c98 ea3bbe40 c06988c0 c026aaf0 00000000 c0656c98 c0656c98 c00088a4
[    2.621163] bf00: 00000000 c0055f48 00000000 00000004 00000000 ea890000 c05dbc54 c062c178
[    2.629323] bf20: c0603518 c005f674 00000001 ea87a000 eb7ff83b c0476440 00000091 c003d41c
[    2.637482] bf40: c05db344 00000007 eb7ff858 00000007 c065a76c c0647d24 00000007 c062c170
[    2.645642] bf60: c06988c0 00000091 c062c178 c0603518 00000000 c0603cc4 00000007 00000007
[    2.653801] bf80: c0603518 c0c0c0c0 00000000 c0453948 00000000 00000000 00000000 00000000
[    2.661959] bfa0: 00000000 c0453950 00000000 c000e728 00000000 00000000 00000000 00000000
[    2.670118] bfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    2.678277] bfe0: 00000000 00000000 00000000 00000000 00000013 00000000 c0c0c0c0 c0c0c0c0
[    2.686454] [<c01f4220>] (strcmp) from [<c030fe38>] (power_supply_match_device_by_name+0x10/0x1c)
[    2.695303] [<c030fe38>] (power_supply_match_device_by_name) from [<c026b1c8>] (class_find_device+0x54/0xac)
[    2.705106] [<c026b1c8>] (class_find_device) from [<c030fee0>] (power_supply_get_by_name+0x1c/0x30)
[    2.714137] [<c030fee0>] (power_supply_get_by_name) from [<c03138fc>] (charger_manager_probe+0x3d8/0xe58)
[    2.723683] [<c03138fc>] (charger_manager_probe) from [<c026b71c>] (platform_drv_probe+0x2c/0x5c)
[    2.732532] [<c026b71c>] (platform_drv_probe) from [<c026a330>] (driver_probe_device+0x10c/0x224)
[    2.741384] [<c026a330>] (driver_probe_device) from [<c026a4dc>] (__driver_attach+0x94/0x98)
[    2.749813] [<c026a4dc>] (__driver_attach) from [<c0268b5c>] (bus_for_each_dev+0x54/0x88)
[    2.757969] [<c0268b5c>] (bus_for_each_dev) from [<c0269b18>] (bus_add_driver+0xd4/0x1d0)
[    2.766123] [<c0269b18>] (bus_add_driver) from [<c026aaf0>] (driver_register+0x78/0xf4)
[    2.774110] [<c026aaf0>] (driver_register) from [<c00088a4>] (do_one_initcall+0x80/0x1bc)
[    2.782276] [<c00088a4>] (do_one_initcall) from [<c0603cc4>] (kernel_init_freeable+0x100/0x1cc)
[    2.790952] [<c0603cc4>] (kernel_init_freeable) from [<c0453950>] (kernel_init+0x8/0xec)
[    2.799029] [<c0453950>] (kernel_init) from [<c000e728>] (ret_from_fork+0x14/0x2c)
[    2.806572] Code: e12fff1e e1a03000 eafffff7 e4d03001 (e4d12001)
[    2.812832] ---[ end trace 7f12556111b9e7ef ]---

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: <stable@vger.kernel.org>
Fixes: 856ee6115e ("charger-manager: Support deivce tree in charger manager driver")
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-09-26 17:09:56 +02:00
..
avs PM / AVS: SmartReflex: use devm_* API to initialize SmartReflex 2013-06-10 10:50:48 -07:00
reset power: reset: add LTC2952 poweroff driver 2014-09-16 11:01:39 +02:00
88pm860x_battery.c 88pm860x_battery: Remove unnecessary platform_set_drvdata() 2013-06-06 17:12:37 -07:00
88pm860x_charger.c treewide: Fix typo in printk 2013-08-20 12:44:03 +02:00
ab8500_bmdata.c ab8500_bmdata: Export abx500_res_to_temp tables for hwmon 2013-04-16 17:38:10 -07:00
ab8500_btemp.c ab8500_bm: Remove unnecessary platform_set_drvdata() 2013-06-06 17:13:09 -07:00
ab8500_charger.c ab8500-charger: Remove redundant break 2013-10-25 15:36:23 -07:00
ab8500_fg.c tree-wide: use reinit_completion instead of INIT_COMPLETION 2013-11-15 09:32:21 +09:00
abx500_chargalg.c ab8500_bm: Remove unnecessary platform_set_drvdata() 2013-06-06 17:13:09 -07:00
apm_power.c
bq27x00_battery.c bq27x00_battery: Add support to bq27742 2014-09-25 01:33:03 +02:00
bq2415x_charger.c bq2415x_charger: Fix Atomic Sleep Bug 2014-07-18 23:40:22 +02:00
bq24190_charger.c bq24190_charger: Workaround SS definition problem on i386 builds 2013-08-28 17:52:50 -07:00
bq24735-charger.c power_supply: Add support for bq24735 charger 2013-10-25 15:56:51 -07:00
charger-manager.c power: charger-manager: Fix NULL pointer exception with missing cm-fuel-gauge 2014-09-26 17:09:56 +02:00
collie_battery.c power supply: collie_battery: Convert to use dev_pm_ops 2013-08-09 13:41:06 -07:00
da9030_battery.c da9030_battery: Use devm_kzalloc() 2013-03-31 23:25:51 -07:00
da9052-battery.c da9052-battery: Use devm_kzalloc() 2013-03-31 23:25:49 -07:00
ds2760_battery.c ds2760_battery: Use devm_kzalloc() 2013-03-31 23:25:47 -07:00
ds2780_battery.c ds2780_battery: Use devm_kzalloc() 2013-03-31 23:25:45 -07:00
ds2781_battery.c
ds2782_battery.c power: ds2782_battery: Typo in comment 2014-01-25 15:24:15 +04:00
generic-adc-battery.c generic-adc-battery: Fix checking if none of the channels are supported 2013-06-06 17:33:40 -07:00
goldfish_battery.c goldfish_battery: Use resource_size() 2013-03-31 23:39:40 -07:00
gpio-charger.c power: gpio-charger: do not use gpio value directly 2014-09-25 01:45:59 +02:00
intel_mid_battery.c power: Use platform_{get,set}_drvdata() 2013-06-06 17:30:46 -07:00
ipaq_micro_battery.c ipaq_micro_battery: fix sparse non static symbol warning 2014-07-28 15:36:29 +02:00
isp1704_charger.c isp1704_charger: remove useless check in isp1704_charger_probe() 2014-01-25 15:24:15 +04:00
jz4740-battery.c tree-wide: use reinit_completion instead of INIT_COMPLETION 2013-11-15 09:32:21 +09:00
Kconfig power: max14577: Fix circular config SYSFS dependency 2014-09-25 16:05:50 +02:00
lp8727_charger.c lp8727_charger: Support the device tree feature 2013-06-06 17:19:54 -07:00
lp8788-charger.c lp8788-charger: Use PAGE_SIZE for the sysfs read operation 2013-03-31 23:33:19 -07:00
Makefile power: add driver for battery reading on iPaq h3xxx 2014-07-24 16:20:17 +02:00
max8903_charger.c max8903_charger: Use devm_kzalloc() 2013-03-31 23:25:38 -07:00
max8925_power.c power: max8925: Use of_get_child_by_name 2014-09-25 01:37:13 +02:00
max8997_charger.c max8997_charger: Use devm_kzalloc() 2013-03-31 23:25:36 -07:00
max8998_charger.c max8998_charger: Use devm_kzalloc() 2013-03-31 23:25:34 -07:00
max14577_charger.c charger: max14577: Configure battery-dependent settings from DTS and sysfs 2014-09-24 15:25:49 +01:00
max17040_battery.c power: max17040: Add ID for MAX77836 Fuel Gauge block 2014-09-24 15:25:52 +01:00
max17042_battery.c max17042_battery: Add IRQF_ONESHOT flag to use default irq handler 2013-12-23 18:59:41 -08:00
olpc_battery.c
pcf50633-charger.c power_supply: Replace strict_strtoul() with kstrtoul() 2013-06-06 17:35:38 -07:00
pda_power.c
pm2301_charger.c pm2301-charger: Remove unneeded NULL checks 2013-11-12 22:36:34 -08:00
pm2301_charger.h
pmu_battery.c
power_supply_core.c power_supply: Don't iterate over devices to return -EPROBE_DEFER 2014-09-16 11:01:38 +02:00
power_supply_leds.c power-supply: Avoid unnecessary 'goto' statements 2014-09-16 11:01:37 +02:00
power_supply_sysfs.c power-supply: Check for failures only when we can fail 2014-09-16 11:01:37 +02:00
power_supply.h
rx51_battery.c rx51_battery: convert to iio consumer 2014-07-18 23:40:22 +02:00
s3c_adc_battery.c
sbs-battery.c sbs-battery: add min design voltage to sbs-battery 2014-09-06 20:57:43 +02:00
smb347-charger.c
test_power.c
tosa_battery.c power_supply: tosa_battery: Get rid of irq_to_gpio usage 2013-08-09 13:41:52 -07:00
tps65090-charger.c charger: tps65090: Allow charger module to be used when no irq 2014-07-18 23:40:23 +02:00
twl4030_charger.c power: twl4030_charger: detect battery presence prior to enabling charger 2014-07-23 13:58:33 +02:00
twl4030_madc_battery.c power: Add twl4030_madc battery driver. 2013-08-30 17:34:52 -07:00
wm97xx_battery.c
wm831x_backup.c wm831x_backup: Fix wrong kfree call for devdata->backup.name 2013-05-10 11:56:22 -07:00
wm831x_power.c
wm8350_power.c
z2_battery.c