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linux/drivers/tty/serial
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Tetsuo Handa ae01e52da2 serial: drop debugging WARN_ON_ONCE() from uart_write() 
syzbot is reporting lockdep warning upon

  int disc = 7;
  ioctl(open("/dev/ttyS3", O_RDONLY), TIOCSETD, &disc);

sequence. Do like what commit 5f1149d2f4 ("serial: drop debugging
WARN_ON_ONCE() from uart_put_char()") does.

Reported-by: syzbot+f78380e4eae53c64125c@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=f78380e4eae53c64125c
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Acked-by: Jiri Slaby <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/d775ae2d-a2ac-439e-8e2b-134749f60f30@I-love.SAKURA.ne.jp
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 		2024-06-04 14:10:43 +02:00
..
8250 serial: 8250_pxa: Configure tx_loadsz to match FIFO IRQ level 2024-06-04 14:08:09 +02:00
jsm tty: serial: switch from circ_buf to kfifo 2024-04-09 15:28:03 +02:00
21285.c
…
Kconfig serial: sc16is7xx: re-add Kconfig SPI or I2C dependency 2024-06-04 14:10:28 +02:00
Makefile serial: sc16is7xx: rename Kconfig CONFIG_SERIAL_SC16IS7XX_CORE 2024-06-04 14:10:28 +02:00
altera_jtaguart.c serial: altera_jtaguart: Convert to platform remove callback returning void 2023-11-23 19:12:30 +00:00
altera_uart.c tty/serial: altera_uart: use more informative labels in /proc/interrupts 2024-01-04 16:20:51 +01:00
amba-pl010.c
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amba-pl011.c serial: amba-pl011: move variable into CONFIG_DMA_ENGINE conditional 2024-04-09 17:07:10 +02:00
apbuart.c serial: apbuart: fix console prompt on qemu 2024-01-04 16:21:06 +01:00
apbuart.h
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ar933x_uart.c serial: ar933x: Remove unneeded static structure 2024-04-09 17:07:10 +02:00
arc_uart.c tty: serial: switch from circ_buf to kfifo 2024-04-09 15:28:03 +02:00
atmel_serial.c tty: atmel_serial: use single DMA mapping for RX 2024-04-09 15:28:04 +02:00
atmel_serial.h
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bcm63xx_uart.c serial: bcm63xx: Use uart_prepare_sysrq_char(). 2024-03-02 22:06:20 +01:00
clps711x.c tty: serial: switch from circ_buf to kfifo 2024-04-09 15:28:03 +02:00
cpm_uart.c tty: serial: switch from circ_buf to kfifo 2024-04-09 15:28:03 +02:00
cpm_uart.h
…
digicolor-usart.c tty: serial: switch from circ_buf to kfifo 2024-04-09 15:28:03 +02:00
dz.c tty: serial: switch from circ_buf to kfifo 2024-04-09 15:28:03 +02:00
dz.h
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earlycon-riscv-sbi.c tty/serial: Add RISC-V SBI debug console based earlycon 2024-01-10 07:04:04 -08:00
earlycon-semihost.c
…
earlycon.c
…
esp32_acm.c serial: esp32_acm: Add explicit platform_device.h include 2023-12-15 14:20:00 +01:00
esp32_uart.c serial: esp32_uart: Use device_get_match_data() 2023-12-15 14:20:00 +01:00
fsl_linflexuart.c tty: serial: switch from circ_buf to kfifo 2024-04-09 15:28:03 +02:00
fsl_lpuart.c tty: serial: fsl_lpuart: use dev_err_probe for clocks 2024-04-17 13:14:04 +02:00
icom.c tty: serial: switch from circ_buf to kfifo 2024-04-09 15:28:03 +02:00
imx.c serial: imx: Raise TX trigger level to 8 2024-05-10 11:49:19 +01:00
imx_earlycon.c
…
ip22zilog.c tty: serial: switch from circ_buf to kfifo 2024-04-09 15:28:03 +02:00
ip22zilog.h
…
kgdb_nmi.c
…
kgdboc.c serial: kgdboc: Fix NMI-safety problems from keyboard reset code 2024-04-26 17:14:10 +01:00
lantiq.c serial: lantiq: Convert to platform remove callback returning void 2023-11-23 19:12:32 +00:00
liteuart.c serial: liteuart: Convert to platform remove callback returning void 2023-11-23 19:12:32 +00:00
lpc32xx_hs.c serial: lpc32xx_hs: Use uart_prepare_sysrq_char() to handle sysrq. 2024-03-02 22:06:21 +01:00
ma35d1_serial.c serial: ma35d1: Fix spelling mistake "ononsole" -> "console" 2023-12-15 14:23:30 +01:00
max310x.c tty: serial: max310x: convert to use maple tree register cache 2024-04-09 16:50:36 +02:00
max3100.c serial: max3100: Convert to_max3100_port() to be static inline 2024-04-11 14:08:40 +02:00
mcf.c drivers/tty/serial: Remove unused function early_mcf_setup 2024-03-02 21:52:35 +01:00
men_z135_uart.c tty: serial: switch from circ_buf to kfifo 2024-04-09 15:28:03 +02:00
meson_uart.c serial: meson+qcom: don't advance the kfifo twice 2024-04-16 09:05:43 +02:00
milbeaut_usio.c tty: serial: switch from circ_buf to kfifo 2024-04-09 15:28:03 +02:00
mpc52xx_uart.c serial: mpc52xx: Convert to platform remove callback returning void 2023-11-23 19:12:32 +00:00
mps2-uart.c
…
msm_serial.c serial: msm: check dma_map_sg() return value properly 2024-04-20 07:58:42 +02:00
mux.c
…
mvebu-uart.c tty: serial: switch from circ_buf to kfifo 2024-04-09 15:28:03 +02:00
mxs-auart.c Merge 6.9-rc5 into tty-next 2024-04-23 13:24:45 +02:00
omap-serial.c serial: omap: remove redundant assignment to variable tmout 2024-04-11 14:08:36 +02:00
owl-uart.c serial: owl: Use uart_prepare_sysrq_char() to handle sysrq. 2024-03-02 22:06:21 +01:00
pch_uart.c tty: serial: switch from circ_buf to kfifo 2024-04-09 15:28:03 +02:00
pic32_uart.c serial: pic32_uart: Replace of_gpio.h by proper one 2024-04-09 15:48:43 +02:00
pmac_zilog.c Merge 6.9-rc5 into tty-next 2024-04-23 13:24:45 +02:00
pmac_zilog.h
…
pxa.c serial: pxa: Use uart_prepare_sysrq_char(). 2024-03-02 22:06:21 +01:00
qcom_geni_serial.c serial: meson+qcom: don't advance the kfifo twice 2024-04-16 09:05:43 +02:00
rda-uart.c tty: serial: switch from circ_buf to kfifo 2024-04-09 15:28:03 +02:00
rp2.c tty: rp2: remove unused rp2_uart_port::ignore_rx 2023-11-23 19:16:03 +00:00
sa1100.c serial: sa1100: Convert to platform remove callback returning void 2023-11-23 19:12:33 +00:00
samsung_tty.c tty: serial: switch from circ_buf to kfifo 2024-04-09 15:28:03 +02:00
sb1250-duart.c tty: serial: switch from circ_buf to kfifo 2024-04-09 15:28:03 +02:00
sc16is7xx.c TTY/Serial fixes for 6.10-rc1 2024-05-24 08:38:28 -07:00
sc16is7xx.h serial: sc16is7xx: split into core and I2C/SPI parts (sc16is7xx_regcfg) 2024-04-11 14:08:08 +02:00
sc16is7xx_i2c.c serial: sc16is7xx: split into core and I2C/SPI parts (sc16is7xx_regcfg) 2024-04-11 14:08:08 +02:00
sc16is7xx_spi.c serial: sc16is7xx: split into core and I2C/SPI parts (sc16is7xx_regcfg) 2024-04-11 14:08:08 +02:00
sccnxp.c tty: serial: switch from circ_buf to kfifo 2024-04-09 15:28:03 +02:00
serial-tegra.c tty: serial: switch from circ_buf to kfifo 2024-04-09 15:28:03 +02:00
serial_base.h Merge 6.9-rc5 into tty-next 2024-04-23 13:24:45 +02:00
serial_base_bus.c serial: core: Fix ifdef for serial base console functions 2024-04-13 12:44:03 +02:00
serial_core.c serial: drop debugging WARN_ON_ONCE() from uart_write() 2024-06-04 14:10:43 +02:00
serial_ctrl.c
…
serial_mctrl_gpio.c
…
serial_mctrl_gpio.h
…
serial_port.c serial: port: Don't block system suspend even if bytes are left to xmit 2024-06-04 14:09:47 +02:00
serial_txx9.c serial: txx9: Add missing #include <asm/txx9/generic.h> 2024-01-27 19:05:39 -08:00
sh-sci.c serial: sh-sci: simplify locking when re-issuing RXDMA fails 2024-05-10 11:48:33 +01:00
sh-sci.h
…
sifive.c serial: sifive: Remove 0 from fu540-c000-uart0 binding. 2024-04-09 15:48:46 +02:00
sprd_serial.c tty: serial: switch from circ_buf to kfifo 2024-04-09 15:28:03 +02:00
st-asc.c tty: serial: switch from circ_buf to kfifo 2024-04-09 15:28:03 +02:00
stm32-usart.c Merge 6.9-rc5 into tty-next 2024-04-23 13:24:45 +02:00
stm32-usart.h serial: stm32: get FIFO size from hwcfg register 2024-01-27 19:04:11 -08:00
suncore.c
…
sunhv.c tty: serial: switch from circ_buf to kfifo 2024-04-09 15:28:03 +02:00
sunplus-uart.c tty: serial: switch from circ_buf to kfifo 2024-04-09 15:28:03 +02:00
sunsab.c tty: serial: switch from circ_buf to kfifo 2024-04-09 15:28:03 +02:00
sunsab.h
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sunsu.c tty: serial: switch from circ_buf to kfifo 2024-04-09 15:28:03 +02:00
sunzilog.c tty: serial: switch from circ_buf to kfifo 2024-04-09 15:28:03 +02:00
sunzilog.h
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tegra-tcu.c tty: serial: switch from circ_buf to kfifo 2024-04-09 15:28:03 +02:00
timbuart.c tty: serial: switch from circ_buf to kfifo 2024-04-09 15:28:03 +02:00
timbuart.h
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uartlite.c tty: serial: switch from circ_buf to kfifo 2024-04-09 15:28:03 +02:00
ucc_uart.c tty: serial: switch from circ_buf to kfifo 2024-04-09 15:28:03 +02:00
vt8500_serial.c
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xilinx_uartps.c tty: serial: uartps: Add support for uartps controller reset 2024-05-04 18:11:05 +02:00
zs.c tty: serial: switch from circ_buf to kfifo 2024-04-09 15:28:03 +02:00
zs.h
…