moonjuice/kernel_arpi
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cba5e97280f53ec7feb656fcdf0ec00a5c6dd539
kernel_arpi/drivers/tty/serial
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Andy Shevchenko 7c3e8d9df2 serial: 8250_exar: Avoid NULL pointer dereference at ->exit() 
It's possible that during ->exit() the private_data is NULL,
for instance when there was no GPIO device instantiated.
Due to this we may not dereference it. Add a respective check.

Note, for now ->exit() only makes sense when GPIO device
was instantiated, that's why we may use the check for entire
function.

Fixes: 81171e7d31 ("serial: 8250_exar: Constify the software nodes")
Reported-by: Maxim Levitsky <mlevitsk@redhat.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Maxim Levitsky <mlevitsk@redhat.com>
Link: https://lore.kernel.org/r/20210608144239.12697-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-06-09 14:40:48 +02:00
..
8250
serial: 8250_exar: Avoid NULL pointer dereference at ->exit()
2021-06-09 14:40:48 +02:00
cpm_uart
…
jsm
Merge 5.12-rc6 into tty-next
2021-04-05 08:59:21 +02:00
21285.c
…
altera_jtaguart.c
serial: altera_jtaguart: drop low-latency workaround
2021-04-22 12:09:24 +02:00
altera_uart.c
serial: altera_uart: drop low-latency workaround
2021-04-22 12:09:24 +02:00
amba-pl010.c
serial: amba-pl010: drop low-latency workaround
2021-04-22 12:09:24 +02:00
amba-pl011.c
serial: amba-pl011: drop low-latency workaround
2021-04-22 12:09:24 +02:00
amba-pl011.h
…
apbuart.c
serial: apbuart: drop low-latency workaround
2021-04-22 12:09:25 +02:00
apbuart.h
…
ar933x_uart.c
serial: ar933x: drop low-latency workaround
2021-04-22 12:09:25 +02:00
arc_uart.c
serial: arc_uart: drop low-latency workaround
2021-04-22 12:09:25 +02:00
atmel_serial.c
serial: atmel_serial: drop low-latency workaround
2021-04-22 12:09:25 +02:00
atmel_serial.h
…
bcm63xx_uart.c
serial: bcm63xx: drop low-latency workaround
2021-04-22 12:09:25 +02:00
clps711x.c
…
digicolor-usart.c
…
dz.c
…
dz.h
…
earlycon-arm-semihost.c
…
earlycon-riscv-sbi.c
…
earlycon.c
…
fsl_linflexuart.c
…
fsl_lpuart.c
serial: fsl_lpuart: Use of_device_get_match_data()
2021-01-20 18:48:15 +01:00
icom.c
serial: icom: drop low-latency workaround
2021-04-22 12:09:25 +02:00
icom.h
…
imx_earlycon.c
…
imx.c
serial: imx: drop workaround for forced irq threading
2021-03-23 10:32:44 +01:00
ip22zilog.c
…
ip22zilog.h
…
Kconfig
serial: extend compile-test coverage
2021-04-22 13:12:13 +02:00
kgdb_nmi.c
tty: do not check tty_unregister_driver's return value
2021-03-10 09:34:09 +01:00
kgdboc.c
…
lantiq.c
…
liteuart.c
serial: liteuart: fix return value check in liteuart_probe()
2021-03-10 09:34:10 +01:00
lpc32xx_hs.c
serial: lpc32xx_hs: drop low-latency workaround
2021-04-22 12:09:25 +02:00
Makefile
serial: ifx6x60: Remove driver for deprecated platform
2021-01-26 19:21:49 +01:00
max310x.c
serial: max310x: unregister uart driver in case of failure and abort
2021-05-13 17:30:21 +02:00
max3100.c
…
mcf.c
serial: mcf: drop low-latency workaround
2021-04-22 12:09:25 +02:00
men_z135_uart.c
…
meson_uart.c
serial: meson: drop low-latency workaround
2021-04-22 12:09:25 +02:00
milbeaut_usio.c
…
mpc52xx_uart.c
serial: mpc52xx_uart: drop low-latency workaround
2021-04-22 12:09:25 +02:00
mps2-uart.c
…
msm_serial.c
serial: msm_serial: drop low-latency workaround
2021-04-22 12:09:25 +02:00
mux.c
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mvebu-uart.c
Revert "serial: mvebu-uart: Fix to avoid a potential NULL pointer dereference"
2021-05-13 17:30:04 +02:00
mxs-auart.c
serial: mxs-auart: Remove <asm/cacheflush.h>
2021-01-20 18:48:19 +01:00
omap-serial.c
serial: omap: fix rs485 half-duplex filtering
2021-04-22 12:07:07 +02:00
owl-uart.c
serial: owl: drop low-latency workaround
2021-04-22 12:09:25 +02:00
pch_uart.c
serial: pch_uart: fix build error with !CONFIG_DEBUG_FS
2021-03-23 10:31:09 +01:00
pic32_uart.c
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pic32_uart.h
…
pmac_zilog.c
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pmac_zilog.h
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pxa.c
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qcom_geni_serial.c
Merge tag 'pm-5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
2021-04-26 15:10:25 -07:00
rda-uart.c
serial: rda: drop low-latency workaround
2021-04-22 12:09:26 +02:00
rp2.c
serial: rp2: use 'request_firmware' instead of 'request_firmware_nowait'
2021-05-21 20:34:02 +02:00
sa1100.c
serial: sa1100: drop low-latency workaround
2021-04-22 12:09:26 +02:00
samsung_tty.c
tty: serial: samsung_tty: remove spinlock flags in interrupt handlers
2021-03-23 10:20:38 +01:00
sb1250-duart.c
…
sc16is7xx.c
sc16is7xx: Defer probe if device read fails
2021-04-05 12:07:32 +02:00
sccnxp.c
…
serial_core.c
serial: core: fix suspicious security_locked_down() call
2021-05-13 17:08:04 +02:00
serial_mctrl_gpio.c
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serial_mctrl_gpio.h
…
serial_txx9.c
serial: txx9: drop low-latency workaround
2021-04-22 12:09:26 +02:00
serial-tegra.c
serial: tegra: Fix a mask operation that is always true
2021-05-13 17:07:43 +02:00
sh-sci.c
serial: sh-sci: Fix off-by-one error in FIFO threshold register setting
2021-05-13 17:08:29 +02:00
sh-sci.h
…
sifive.c
serial: sifive: drop low-latency workaround
2021-04-22 12:09:26 +02:00
sprd_serial.c
…
st-asc.c
…
stm32-usart.c
serial: stm32: add FIFO threshold configuration
2021-04-22 12:11:25 +02:00
stm32-usart.h
serial: stm32: add FIFO threshold configuration
2021-04-22 12:11:25 +02:00
suncore.c
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sunhv.c
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sunsab.c
…
sunsab.h
…
sunsu.c
serial: sunsu: drop low-latency workaround
2021-04-22 12:09:26 +02:00
sunzilog.c
…
sunzilog.h
…
tegra-tcu.c
serial: Add missing MODULE_DEVICE_TABLE
2021-04-10 10:37:27 +02:00
timbuart.c
serial: timbuart: drop low-latency workaround
2021-04-22 12:09:26 +02:00
timbuart.h
…
uartlite.c
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ucc_uart.c
tty: serial: ucc_uart: replace qe_io{read,write}* wrappers by generic io{read,write}*
2021-04-06 15:40:42 -05:00
vr41xx_siu.c
…
vt8500_serial.c
serial: vt8500: drop low-latency workaround
2021-04-22 12:09:26 +02:00
xilinx_uartps.c
serial: xilinx_uartps: drop low-latency workaround
2021-04-22 12:09:26 +02:00
zs.c
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zs.h
…