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Gustavo A. R. Silva ce02d82c4e mfd: sm501: Fix potential NULL pointer dereference 
commit ae7b8eda27 upstream.

There is a potential NULL pointer dereference in case devm_kzalloc()
fails and returns NULL.

Fix this by adding a NULL check on *lookup*

This bug was detected with the help of Coccinelle.

Fixes: b2e6355559 ("i2c: gpio: Convert to use descriptors")
Cc: stable@vger.kernel.org
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-03-23 20:10:09 +01:00
..
88pm80x.c
…
88pm800.c
…
88pm805.c
…
88pm860x-core.c
…
88pm860x-i2c.c
mfd: 88pm860x-i2c: switch to i2c_lock_bus(..., I2C_LOCK_SEGMENT)
2018-07-13 00:09:36 +02:00
aat2870-core.c
…
ab3100-core.c
…
ab3100-otp.c
…
ab8500-core.c
mfd: ab8500-core: Return zero in get_register_interruptible()
2019-02-27 10:08:51 +01:00
ab8500-debugfs.c
treewide: devm_kzalloc() -> devm_kcalloc()
2018-06-12 16:19:22 -07:00
ab8500-gpadc.c
…
ab8500-sysctrl.c
…
abx500-core.c
mfd: abx500-core: Adjust 14 checks for null pointers
2018-05-16 09:21:48 +01:00
ac100.c
…
act8945a.c
…
adp5520.c
…
altera-a10sr.c
…
arizona-core.c
mfd: arizona: Don't use regmap_read_poll_timeout
2018-07-27 08:13:25 +01:00
arizona-i2c.c
…
arizona-irq.c
…
arizona-spi.c
…
arizona.h
…
as3711.c
…
as3722.c
mfd: as3722: Disable auto-power-on when AC OK
2018-07-27 08:16:01 +01:00
asic3.c
mfd: asic3: Fix broken MMC card detection
2018-06-04 08:44:17 +01:00
atmel-flexcom.c
…
atmel-hlcdc.c
headers: separate linux/mod_devicetable.h from linux/platform_device.h
2018-07-07 17:52:26 +02:00
atmel-smc.c
mfd: syscon: atmel-smc: Include string.h
2018-05-29 09:09:29 +01:00
axp20x-i2c.c
mfd: axp20x: Support AXP806 in I2C mode
2018-07-27 08:13:26 +01:00
axp20x-rsb.c
…
axp20x.c
mfd: axp20x: Add supported cells for AXP803
2019-02-27 10:08:52 +01:00
bcm590xx.c
…
bd9571mwv.c
mfd: bd9571mwv: Add volatile register to make DVFS work
2019-02-27 10:08:51 +01:00
cros_ec_dev.c
mfd: cros_ec_dev: Add missing mfd_remove_devices() call in remove
2019-02-27 10:08:52 +01:00
cros_ec_dev.h
…
cros_ec.c
Merge tag 'mfd-next-4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
2018-06-11 07:20:17 -07:00
cs47l24-tables.c
…
cs47l35-tables.c
mfd: madera: Register map tables for Cirrus Logic CS47L35
2018-06-05 11:15:01 +01:00
cs47l85-tables.c
mfd: madera: Register map tables for Cirrus Logic CS47L85
2018-06-05 11:15:08 +01:00
cs47l90-tables.c
mfd: madera: Register map tables for Cirrus Logic CS47L90/91
2018-06-05 11:15:12 +01:00
cs5535-mfd.c
…
da903x.c
…
da9052-core.c
…
da9052-i2c.c
…
da9052-irq.c
…
da9052-spi.c
…
da9055-core.c
…
da9055-i2c.c
…
da9062-core.c
mfd: da9062: Use core helper regmap_reg_range macros
2018-05-16 09:21:48 +01:00
da9063-core.c
mfd: da9063: Register RTC only on DA9063L
2018-07-04 07:17:02 +01:00
da9063-i2c.c
mfd: da9063: Add DA9063L support
2018-07-04 07:17:13 +01:00
da9063-irq.c
mfd: da9063: Add custom IRQ map for DA9063L
2018-07-04 07:16:57 +01:00
da9150-core.c
…
davinci_voicecodec.c
…
db8500-prcmu.c
mfd: db8500-prcmu: Fix some section annotations
2019-02-27 10:08:51 +01:00
dbx500-prcmu-regs.h
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dln2.c
mfd: dln2: Use irqsave() in USB's complete callback
2018-07-27 08:13:25 +01:00
dm355evm_msp.c
…
exynos-lpass.c
…
ezx-pcap.c
…
fsl-imx25-tsadc.c
…
hi655x-pmic.c
mfd: hi655x: Fix regmap area declared size for hi655x
2018-07-27 08:13:25 +01:00
hi6421-pmic-core.c
…
htc-i2cpld.c
treewide: devm_kzalloc() -> devm_kcalloc()
2018-06-12 16:19:22 -07:00
htc-pasic3.c
…
intel_msic.c
…
intel_quark_i2c_gpio.c
gpio: dwapb: Add support for 1 interrupt per port A GPIO
2018-05-16 14:35:24 +02:00
intel_soc_pmic_bxtwc.c
…
intel_soc_pmic_chtdc_ti.c
…
intel_soc_pmic_chtwc.c
…
intel_soc_pmic_core.c
…
intel_soc_pmic_core.h
…
intel_soc_pmic_crc.c
…
intel-lpss-acpi.c
…
intel-lpss-pci.c
mfd: intel-lpss: Add Ice Lake PCI IDs
2018-07-27 08:13:24 +01:00
intel-lpss.c
mfd: intel-lpss: Correct names of RESETS register bits
2018-06-04 06:48:22 +01:00
intel-lpss.h
…
ipaq-micro.c
…
janz-cmodio.c
mfd: janz-cmodio: Delete error message for a failed memory allocation
2018-05-16 09:21:48 +01:00
jz4740-adc.c
mfd: jz4740-adc: Delete error message for a failed memory allocation
2018-05-16 09:21:48 +01:00
Kconfig
mfd: bd71837: Core driver for ROHM BD71837 PMIC
2018-08-16 10:13:37 +01:00
kempld-core.c
mfd: kempld-core: Constify variables that point to const structure
2018-07-27 08:13:24 +01:00
lm3533-core.c
…
lm3533-ctrlbank.c
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lp873x.c
…
lp3943.c
…
lp8788-irq.c
…
lp8788.c
…
lp87565.c
…
lpc_ich.c
…
lpc_sch.c
…
madera-core.c
mfd: madera: Add common support for Cirrus Logic Madera codecs
2018-06-05 11:14:56 +01:00
madera-i2c.c
mfd: madera: Add common support for Cirrus Logic Madera codecs
2018-06-05 11:14:56 +01:00
madera-spi.c
mfd: madera: Add common support for Cirrus Logic Madera codecs
2018-06-05 11:14:56 +01:00
madera.h
mfd: madera: Add common support for Cirrus Logic Madera codecs
2018-06-05 11:14:56 +01:00
Makefile
mfd: bd71837: Core driver for ROHM BD71837 PMIC
2018-08-16 10:13:37 +01:00
max8907.c
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max8925-core.c
…
max8925-i2c.c
…
max8997-irq.c
…
max8997.c
mfd: max8997: Delete error message for a failed memory allocation
2018-05-16 09:21:48 +01:00
max8998-irq.c
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max8998.c
…
max14577.c
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max77620.c
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max77686.c
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max77693.c
…
max77843.c
…
mc13xxx-core.c
mfd: mc13xxx: Fix a missing check of a register-read failure
2019-02-27 10:08:52 +01:00
mc13xxx-i2c.c
…
mc13xxx-spi.c
…
mc13xxx.h
…
mcp-core.c
…
mcp-sa11x0.c
…
menelaus.c
mfd: menelaus: Fix possible race condition and leak
2018-11-13 11:08:38 -08:00
menf21bmc.c
…
mfd-core.c
treewide: kzalloc() -> kcalloc()
2018-06-12 16:19:22 -07:00
motorola-cpcap.c
treewide: devm_kzalloc() -> devm_kcalloc()
2018-06-12 16:19:22 -07:00
mt6397-core.c
mfd: mt6397: Do not call irq_domain_remove if PMIC unsupported
2019-02-27 10:08:51 +01:00
mxs-lradc.c
…
omap-usb-host.c
mfd: omap-usb-host: Fix dts probe of children
2018-09-11 16:47:33 +01:00
omap-usb-tll.c
mfd: omap-usb-tll: Allocate driver data at once
2018-05-16 09:21:48 +01:00
omap-usb.h
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palmas.c
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pcf50633-adc.c
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pcf50633-core.c
mfd: pcf50633: Fix some memory leaks in the error handling path of 'pcf50633_probe()'
2018-05-16 09:21:48 +01:00
pcf50633-gpio.c
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pcf50633-irq.c
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qcom_rpm.c
mfd: qcom_rpm: write fw_version to CTRL_REG
2019-02-27 10:08:51 +01:00
qcom-pm8xxx.c
treewide: Use struct_size() for devm_kmalloc() and friends
2018-06-06 11:15:43 -07:00
qcom-spmi-pmic.c
mfd: qcom-spmi-pmic: Add support for pm8005, pm8998 and pmi8998
2018-06-04 06:47:52 +01:00
rave-sp.c
mfd: rave-sp: Emulate CMD_GET_STATUS on device that don't support it
2018-07-27 08:13:25 +01:00
rc5t583-irq.c
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rc5t583.c
mfd: rc5t583: Improve a size determination
2018-05-16 09:21:48 +01:00
rdc321x-southbridge.c
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retu-mfd.c
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rk808.c
…
rn5t618.c
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rohm-bd718x7.c
mfd: bd71837: Core driver for ROHM BD71837 PMIC
2018-08-16 10:13:37 +01:00
rt5033.c
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sec-core.c
mfd: sec-core: Export OF module alias table
2018-07-27 09:27:15 +01:00
sec-irq.c
…
si476x-cmd.c
…
si476x-i2c.c
mfd: si476x-i2c: Delete an error message for a failed memory allocation in si476x_core_probe()
2018-05-16 09:21:48 +01:00
si476x-prop.c
…
sky81452.c
…
sm501.c
mfd: sm501: Fix potential NULL pointer dereference
2019-03-23 20:10:09 +01:00
smsc-ece1099.c
mfd: smsc-ece1099: Improve a size determination in smsc_i2c_probe()
2018-05-16 09:21:48 +01:00
sprd-sc27xx-spi.c
treewide: devm_kzalloc() -> devm_kcalloc()
2018-06-12 16:19:22 -07:00
ssbi.c
…
sta2x11-mfd.c
…
stm32-lptimer.c
…
stm32-timers.c
mfd: stm32-timers: Add support for DMAs
2018-05-16 09:10:38 +01:00
stmpe-i2c.c
…
stmpe-spi.c
…
stmpe.c
…
stmpe.h
…
stw481x.c
…
sun4i-gpadc.c
…
sun6i-prcm.c
…
syscon.c
mfd: syscon: Set name of regmap_config
2018-05-16 09:21:48 +01:00
t7l66xb.c
…
tc3589x.c
…
tc6387xb.c
…
tc6393xb.c
…
ti_am335x_tscadc.c
mfd: ti_am335x_tscadc: Use PLATFORM_DEVID_AUTO while registering mfd cells
2019-02-27 10:08:50 +01:00
ti-lmu.c
…
timberdale.c
Merge branch 'i2c/for-4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
2018-06-14 16:21:46 +09:00
timberdale.h
…
tmio_core.c
…
tps6105x.c
…
tps6507x.c
…
tps6586x.c
mfd: tps6586x: Handle interrupts on suspend
2019-01-22 21:40:33 +01:00
tps65010.c
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tps65086.c
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tps65090.c
mfd: tps65090: Delete an error message for a failed memory allocation in tps65090_i2c_probe()
2018-05-16 09:21:48 +01:00
tps65217.c
…
tps65218.c
mfd: tps65218: Use devm_regmap_add_irq_chip and clean up error path in probe()
2019-02-27 10:08:52 +01:00
tps65910.c
mfd: tps65910: Move an assignment in tps65910_sleepinit()
2018-05-16 09:21:48 +01:00
tps65911-comparator.c
mfd: tps65911-comparator: Fix an off by one bug
2018-05-16 09:21:48 +01:00
tps65912-core.c
…
tps65912-i2c.c
…
tps65912-spi.c
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tps68470.c
mfd: Update to SPDX license identifier
2018-05-16 09:21:48 +01:00
tps80031.c
mfd: tps80031: Delete an error message for a failed memory allocation in tps80031_probe()
2018-05-16 09:21:48 +01:00
twl4030-audio.c
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twl4030-irq.c
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twl4030-power.c
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twl6030-irq.c
mfd: twl6030-irq: Delete an error message for a failed memory allocation in twl6030_init_irq()
2018-05-16 09:21:48 +01:00
twl6040.c
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twl-core.c
mfd: twl-core: Fix section annotations on {,un}protect_pm_master
2019-02-27 10:08:51 +01:00
twl-core.h
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ucb1x00-assabet.c
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ucb1x00-core.c
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ucb1x00-ts.c
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ucb1400_core.c
…
vexpress-sysreg.c
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viperboard.c
mfd: viperboard: Delete an error message for a failed memory allocation in vprbrd_probe()
2018-05-16 09:21:48 +01:00
vx855.c
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wl1273-core.c
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wm97xx-core.c
mfd: wm97xx-core: Platform data can be NULL
2018-06-11 09:11:03 +01:00
wm831x-auxadc.c
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wm831x-core.c
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wm831x-i2c.c
…
wm831x-irq.c
…
wm831x-otp.c
…
wm831x-spi.c
…
wm5102-tables.c
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wm5110-tables.c
mfd: wm5110: Add missing ASRC rate register
2019-02-27 10:08:51 +01:00
wm8350-core.c
…
wm8350-gpio.c
…
wm8350-i2c.c
…
wm8350-irq.c
…
wm8350-regmap.c
…
wm8400-core.c
…
wm8994-core.c
mfd: wm8994: Allow to configure CS/ADDR Pulldown from dts
2018-07-27 08:13:25 +01:00
wm8994-irq.c
…
wm8994-regmap.c
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wm8994.h
…
wm8997-tables.c
…
wm8998-tables.c
…