Nishanth Menon 2ba546ebe0 regulator: ti-abb: Fix array out of bound read access on the first transition ... At the start of driver initialization, we do not know what bias setting the bootloader has configured the system for and we only know for certain the very first time we do a transition. However, since the initial value of the comparison index is -EINVAL, this negative value results in an array out of bound access on the very first transition. Since we don't know what the setting is, we just set the bias configuration as there is nothing to compare against. This prevents the array out of bound access. NOTE: Even though we could use a more relaxed check of "< 0" the only valid values(ignoring cosmic ray induced bitflips) are -EINVAL, 0+. Fixes: 40b1936efe ("regulator: Introduce TI Adaptive Body Bias(ABB) on-chip LDO driver") Link: https://lore.kernel.org/linux-mm/CA+G9fYuk4imvhyCN7D7T6PMDH6oNp6HDCRiTUKMQ6QXXjBa4ag@mail.gmail.com/ Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Nishanth Menon <nm@ti.com> Link: https://lore.kernel.org/r/20201118145009.10492-1-nm@ti.com Signed-off-by: Mark Brown <broonie@kernel.org>		2020-11-18 17:59:24 +00:00
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88pg86x.c
88pm800-regulator.c
88pm8607.c
aat2870-regulator.c
ab3100.c
ab8500-ext.c
ab8500.c
act8865-regulator.c
act8945a-regulator.c
ad5398.c
anatop-regulator.c
arizona-ldo1.c
arizona-micsupp.c
as3711-regulator.c
as3722-regulator.c
axp20x-regulator.c	regulator: Fix for v5.9	2020-09-25 15:16:01 -07:00
bcm590xx-regulator.c
bd718x7-regulator.c	regulator: bd718x7: Make some variable static	2020-09-10 13:50:30 +01:00
bd9571mwv-regulator.c
bd9576-regulator.c	regulator: bd9576: Fix print	2020-10-05 16:18:40 +01:00
bd70528-regulator.c
bd71828-regulator.c
core.c	regulator: workaround self-referent regulators	2020-11-13 14:21:26 +00:00
cpcap-regulator.c
cros-ec-regulator.c
da903x-regulator.c
da9052-regulator.c
da9055-regulator.c	regulator: remove locking around regulator_notifier_call_chain()	2020-09-07 18:35:25 +01:00
da9062-regulator.c	regulator: remove locking around regulator_notifier_call_chain()	2020-09-07 18:35:25 +01:00
da9063-regulator.c	regulator: remove locking around regulator_notifier_call_chain()	2020-09-07 18:35:25 +01:00
da9210-regulator.c	regulator: remove locking around regulator_notifier_call_chain()	2020-09-07 18:35:25 +01:00
da9210-regulator.h
da9211-regulator.c	regulator: remove locking around regulator_notifier_call_chain()	2020-09-07 18:35:25 +01:00
da9211-regulator.h
db8500-prcmu.c
dbx500-prcmu.c
dbx500-prcmu.h
devres.c
dummy.c	regulator: dummy: Constify dummy_initdata and dummy_ops	2020-09-14 14:24:36 +01:00
dummy.h
fan53555.c
fan53880.c
fixed-helper.c
fixed.c	regulator: fixed: Constify static regulator_ops	2020-09-14 14:24:37 +01:00
gpio-regulator.c
helpers.c
hi655x-regulator.c
hi6421-regulator.c
hi6421v530-regulator.c
internal.h
isl6271a-regulator.c
isl9305.c
Kconfig	regulator: rtmv20: Adds support for Richtek RTMV20 load switch regulator	2020-09-28 19:26:32 +01:00
lm363x-regulator.c
lochnagar-regulator.c	regulator: lochnagar: Add additional VDDCORE range	2020-09-07 18:49:13 +01:00
lp872x.c
lp873x-regulator.c
lp3971.c
lp3972.c
lp8755.c	regulator: remove locking around regulator_notifier_call_chain()	2020-09-07 18:35:25 +01:00
lp8788-buck.c
lp8788-ldo.c
lp87565-regulator.c
ltc3589.c	regulator: remove locking around regulator_notifier_call_chain()	2020-09-07 18:35:25 +01:00
ltc3676.c	regulator: remove locking around regulator_notifier_call_chain()	2020-09-07 18:35:25 +01:00
Makefile	regulator: rtmv20: Adds support for Richtek RTMV20 load switch regulator	2020-09-28 19:26:32 +01:00
max1586.c
max8649.c
max8660.c
max8907-regulator.c
max8925-regulator.c
max8952.c
max8973-regulator.c
max8997-regulator.c
max8998.c
max14577-regulator.c
max77620-regulator.c
max77650-regulator.c
max77686-regulator.c
max77693-regulator.c
max77802-regulator.c
max77826-regulator.c
mc13xxx-regulator-core.c
mc13xxx.h
mc13783-regulator.c
mc13892-regulator.c
mcp16502.c
mp886x.c
mp5416.c
mp8859.c
mpq7920.c
mpq7920.h
mt6311-regulator.c
mt6311-regulator.h
mt6323-regulator.c
mt6358-regulator.c
mt6360-regulator.c
mt6380-regulator.c
mt6397-regulator.c
of_regulator.c
palmas-regulator.c
pbias-regulator.c
pca9450-regulator.c	regulator: pca9450: Constify static regulator_ops	2020-09-14 14:24:39 +01:00
pcap-regulator.c
pcf50633-regulator.c
pfuze100-regulator.c	regulator: pfuze100: limit pfuze-support-disable-sw to pfuze{100,200}	2020-11-11 12:34:27 +00:00
pv88060-regulator.c	regulator: remove locking around regulator_notifier_call_chain()	2020-09-07 18:35:25 +01:00
pv88060-regulator.h
pv88080-regulator.c	regulator: remove locking around regulator_notifier_call_chain()	2020-09-07 18:35:25 +01:00
pv88080-regulator.h
pv88090-regulator.c	regulator: remove locking around regulator_notifier_call_chain()	2020-09-07 18:35:25 +01:00
pv88090-regulator.h
pwm-regulator.c	Merge remote-tracking branch 'regulator/for-5.10' into regulator-next	2020-10-05 16:54:56 +01:00
qcom_rpm-regulator.c
qcom_smd-regulator.c	regulator: qcom_smd: add pm8953 regulators	2020-10-05 16:18:37 +01:00
qcom_spmi-regulator.c	regulator: qcom_spmi: Add PM660/PM660L regulators	2020-10-01 21:25:23 +01:00
qcom_usb_vbus-regulator.c
qcom-labibb-regulator.c	regulator: qcom: labibb: Constify static structs	2020-10-01 21:43:16 +01:00
qcom-rpmh-regulator.c
rc5t583-regulator.c
rk808-regulator.c
rn5t618-regulator.c
rohm-regulator.c
rpi-panel-attiny-regulator.c
rt4801-regulator.c
rt5033-regulator.c
rtmv20-regulator.c	regulator: rtmv20: Add missing regcache cache only before marked as dirty	2020-09-30 12:58:09 +01:00
s2mpa01.c
s2mps11.c
s5m8767.c	regulator: s5m8767: initialize driver via module_platform_driver	2020-09-22 00:45:16 +01:00
sc2731-regulator.c
sky81452-regulator.c
slg51000-regulator.c	Merge series "Support ROHM BD9576MUF and BD9573MUF PMICs" from Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>:	2020-09-17 18:25:39 +01:00
slg51000-regulator.h
stm32-booster.c
stm32-pwr.c
stm32-vrefbuf.c
stpmic1_regulator.c	regulator: remove locking around regulator_notifier_call_chain()	2020-09-07 18:35:25 +01:00
stw481x-vmmc.c	regulator: stw481x-vmmc: Constify static structs	2020-09-14 14:24:38 +01:00
sy8106a-regulator.c
sy8824x.c
sy8827n.c
ti-abb-regulator.c	regulator: ti-abb: Fix array out of bound read access on the first transition	2020-11-18 17:59:24 +00:00
tps6105x-regulator.c	regulator: tps6105x: Constify tps6105x_regulator_ops	2020-09-01 15:48:52 +01:00
tps6507x-regulator.c
tps6524x-regulator.c
tps6586x-regulator.c	regulator: tps6586x: Constify static regulator_ops	2020-09-01 15:48:56 +01:00
tps51632-regulator.c
tps62360-regulator.c	regulator: tps62360: Constify tps62360_dcdc_ops	2020-09-01 15:48:53 +01:00
tps65023-regulator.c
tps65086-regulator.c	regulator: tps65086: Constify static regulator_ops	2020-09-01 15:48:54 +01:00
tps65090-regulator.c	regulator: tps65090: constify static regulator_ops	2020-09-01 15:48:55 +01:00
tps65132-regulator.c
tps65217-regulator.c
tps65218-regulator.c
tps65910-regulator.c	regulator: tps65910: use regmap accessors	2020-10-01 16:29:17 +01:00
tps65912-regulator.c	regulator: tps65912: Constify static regulator_ops	2020-09-01 15:48:56 +01:00
tps80031-regulator.c
twl6030-regulator.c
twl-regulator.c
uniphier-regulator.c
userspace-consumer.c
vctrl-regulator.c
vexpress-regulator.c
virtual.c
vqmmc-ipq4019-regulator.c
wm831x-dcdc.c	regulator: remove locking around regulator_notifier_call_chain()	2020-09-07 18:35:25 +01:00
wm831x-isink.c	regulator: remove locking around regulator_notifier_call_chain()	2020-09-07 18:35:25 +01:00
wm831x-ldo.c	regulator: remove locking around regulator_notifier_call_chain()	2020-09-07 18:35:25 +01:00
wm8350-regulator.c	regulator: remove locking around regulator_notifier_call_chain()	2020-09-07 18:35:25 +01:00
wm8400-regulator.c
wm8994-regulator.c