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6942fbc009
linux/drivers/tty/serial
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Sherry Sun 6942fbc009 tty: serial: fsl_lpuart: fix the potential risk of division or modulo by zero 
[ Upstream commit fcb10ee27f ]

We should be very careful about the register values that will be used
for division or modulo operations, althrough the possibility that the
UARTBAUD register value is zero is very low, but we had better to deal
with the "bad data" of hardware in advance to avoid division or modulo
by zero leading to undefined kernel behavior.

Signed-off-by: Sherry Sun <sherry.sun@nxp.com>
Link: https://lore.kernel.org/r/20210427021226.27468-1-sherry.sun@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-20 16:05:38 +02:00
..
8250 serial: 8250: 8250_omap: Fix possible interrupt storm on K3 SoCs 2021-07-14 16:56:49 +02:00
cpm_uart tty: serial: cpm_uart: Fix behaviour for non existing GPIOs 2020-06-27 13:50:51 +02:00
jsm tty: serial: Replace HTTP links with HTTPS ones 2020-07-21 20:04:54 +02:00
21285.c tty: serial: 21285: fix lockup on open 2020-10-28 13:39:14 +01:00
altera_jtaguart.c serial: altera_jtaguart: Replace HTTP links with HTTPS ones 2020-07-21 20:04:54 +02:00
altera_uart.c
amba-pl010.c
amba-pl011.c serial: pl011: Fix lockdep splat when handling magic-sysrq interrupt 2020-09-30 14:31:04 +02:00
amba-pl011.h
apbuart.c
apbuart.h
ar933x_uart.c serial: ar933x_uart: disable clk on error handling path in probe 2020-11-12 09:41:07 +01:00
arc_uart.c
atmel_serial.c Linux 5.9-rc3 2020-08-31 07:19:25 +02:00
atmel_serial.h tty: serial: Use the correct style for SPDX License Identifier 2020-03-07 09:52:01 +01:00
bcm63xx_uart.c Revert "tty: serial: bcm63xx: fix missing clk_put() in bcm63xx_uart" 2020-05-04 11:49:57 +02:00
clps711x.c
digicolor-usart.c
dz.c
dz.h
earlycon-arm-semihost.c
earlycon-riscv-sbi.c
earlycon.c tty: serial: print earlycon info after match->setup 2020-09-16 13:16:20 +02:00
efm32-uart.c tty: serial: efm32: fix spelling mistake "reserverd" -> "reserved" 2020-02-19 11:38:58 +01:00
fsl_linflexuart.c
fsl_lpuart.c tty: serial: fsl_lpuart: fix the potential risk of division or modulo by zero 2021-07-20 16:05:38 +02:00
icom.c tty: serial: icom: switch from 'pci_' to 'dma_' API 2020-09-04 18:07:20 +02:00
icom.h tty: serial: Use the correct style for SPDX License Identifier 2020-03-07 09:52:01 +01:00
ifx6x60.c tty: serial, fix kernel-doc 2020-08-18 13:51:18 +02:00
ifx6x60.h tty: serial: ifx6x60: Convert to GPIO descriptors 2020-03-12 10:03:54 +01:00
imx_earlycon.c tty: serial: imx: add imx earlycon driver 2020-07-29 17:11:02 +02:00
imx.c tty: serial: imx: keep console clocks always on 2020-11-12 09:39:53 +01:00
ip22zilog.c
ip22zilog.h
Kconfig tty: serial: imx: enable earlycon by default if IMX_SERIAL_CONSOLE is enabled 2020-11-06 17:23:49 +01:00
kgdb_nmi.c kdb: Switch to use safer dbg_io_ops over console APIs 2020-06-26 15:40:16 +01:00
kgdboc.c Linux 5.8-rc6 2020-07-20 09:39:11 +02:00
lantiq.c serial: lantiq: Make driver modular 2020-05-15 12:22:19 +02:00
lpc32xx_hs.c serial: lpc32xx_hs: Drop surplus include 2020-04-16 16:12:33 +02:00
Makefile tty: serial: imx: add dependence and build for earlycon 2020-08-18 13:54:34 +02:00
max310x.c serial: max310x: unregister uart driver in case of failure and abort 2021-06-03 09:00:40 +02:00
max3100.c
mcf.c serial: mcf: add sysrq capability 2020-10-05 13:32:30 +02:00
men_z135_uart.c tty: serial, fix kernel-doc 2020-08-18 13:51:18 +02:00
meson_uart.c
milbeaut_usio.c
mpc52xx_uart.c
mps2-uart.c
msm_serial.c serial: msm_serial: add sparse context annotation 2020-07-24 10:44:27 +02:00
mux.c
mvebu-uart.c serial: mvebu-uart: correctly calculate minimal possible baudrate 2021-07-14 16:56:50 +02:00
mxs-auart.c serial: mxs-auart: add missed iounmap() in probe failure and remove 2020-07-10 14:44:46 +02:00
omap-serial.c serial: omap: fix rs485 half-duplex filtering 2021-05-14 09:50:21 +02:00
owl-uart.c tty: serial: owl: add "much needed" clk_prepare_enable() 2020-04-23 15:46:30 +02:00
pch_uart.c pch_uart: drop double zeroing 2020-09-27 14:17:43 +02:00
pic32_uart.c serial: pic32_uart: Use uart_console() helper 2020-03-12 10:00:22 +01:00
pic32_uart.h tty: serial: Use the correct style for SPDX License Identifier 2020-03-07 09:52:01 +01:00
pmac_zilog.c m68k: Fix WARNING splat in pmac_zilog driver 2020-12-30 11:54:11 +01:00
pmac_zilog.h
pnx8xxx_uart.c
pxa.c
qcom_geni_serial.c soc: qcom-geni-se: Cleanup the code to remove proxy votes 2021-04-07 15:00:13 +02:00
rda-uart.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
rp2.c serial: rp2: use 'request_firmware' instead of 'request_firmware_nowait' 2021-06-03 09:00:34 +02:00
sa1100.c serial: sa1100: use platform_get_resource() 2020-08-18 15:02:06 +02:00
samsung_tty.c serial: samsung: Removes the IRQ not found warning 2020-08-18 13:53:42 +02:00
sb1250-duart.c MIPS: Replace SIBYTE_1956_WAR by CONFIG_SB1_PASS_2_WORKAROUNDS 2020-09-07 22:24:51 +02:00
sc16is7xx.c sc16is7xx: Defer probe if device read fails 2021-05-14 09:49:58 +02:00
sccnxp.c
serial_core.c serial: core: fix suspicious security_locked_down() call 2021-06-03 09:00:32 +02:00
serial_mctrl_gpio.c
serial_mctrl_gpio.h tty: serial: Use the correct style for SPDX License Identifier 2020-03-07 09:52:01 +01:00
serial_txx9.c serial: txx9: add missing platform_driver_unregister() on error in serial_txx9_init 2020-11-06 17:24:41 +01:00
serial-tegra.c serial: tegra: Fix a mask operation that is always true 2021-06-03 09:00:34 +02:00
sh-sci.c serial: sh-sci: Stop dmaengine transfer in sci_stop_tx() 2021-07-14 16:55:45 +02:00
sh-sci.h serial: sh-sci: Drop unused include 2020-04-16 16:13:34 +02:00
sifive.c riscv: Fix sifive serial driver 2021-01-27 11:54:59 +01:00
sirfsoc_uart.c
sirfsoc_uart.h tty: serial: Use the correct style for SPDX License Identifier 2020-03-07 09:52:01 +01:00
sprd_serial.c serial: sprd: remove redundant sprd_port cleanup 2020-03-18 12:20:04 +01:00
st-asc.c
stm32-usart.c serial: stm32: fix threaded interrupt handling 2021-06-10 13:39:22 +02:00
stm32-usart.h serial: stm32: fix tx_empty condition 2021-05-14 09:50:08 +02:00
suncore.c
sunhv.c Revert "serial: sunhv: Initialize lock for non-registered console" 2020-07-21 18:21:49 +02:00
sunsab.c serial: sunsab: Return proper error code from console ->setup() hook 2020-06-25 14:21:28 +02:00
sunsab.h
sunsu.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
sunzilog.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
sunzilog.h
tegra-tcu.c
timbuart.c tty: timbuart: convert tasklets to use new tasklet_setup() API 2020-08-18 13:33:13 +02:00
timbuart.h tty: serial: Use the correct style for SPDX License Identifier 2020-03-07 09:52:01 +01:00
uartlite.c tty: serial: uartlite: Replace HTTP links with HTTPS ones 2020-07-21 20:04:54 +02:00
ucc_uart.c serial: ucc_uart: make qe_uart_set_mctrl() static 2020-09-16 13:14:58 +02:00
vr41xx_siu.c
vt8500_serial.c
xilinx_uartps.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
zs.c
zs.h