Uwe Kleine-König ea2624b5b8 serial: stm32: Reset .throttled state in .startup() ...

When an UART is opened that still has .throttled set from a previous
open, the RX interrupt is enabled but the irq handler doesn't consider
it. This easily results in a stuck irq with the effect to occupy the CPU
in a tight loop.

So reset the throttle state in .startup() to ensure that RX irqs are
handled.

Fixes: d1ec8a2eab ("serial: stm32: update throttle and unthrottle ops for dma mode")
Cc: stable@vger.kernel.org
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/a784f80d3414f7db723b2ec66efc56e1ad666cbf.1713344161.git.u.kleine-koenig@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2024-04-17 13:26:45 +02:00

..

hvc

Merge 6.8-rc6 into tty-next

2024-02-27 06:22:13 +01:00

ipwireless

tty: ipwireless: remove unused ipw_dev::attribute_memory

2023-11-23 19:16:03 +00:00

serdev

serdev: make serdev_bus_type const

2024-02-06 14:35:38 +00:00

serial

serial: stm32: Reset .throttled state in .startup()

2024-04-17 13:26:45 +02:00

vt

Merge tag 'tty-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

2024-03-21 12:44:10 -07:00

amiserial.c

tty: amiserial: Convert to platform remove callback returning void

2024-02-19 09:40:50 +01:00

ehv_bytechan.c

tty: ehv_bytechan: convert to u8 and size_t

2023-12-08 12:02:37 +01:00

goldfish.c

tty: goldfish: Convert to platform remove callback returning void

2024-02-19 09:40:50 +01:00

Kconfig

vt: remove superfluous CONFIG_HW_CONSOLE

2024-01-27 19:03:51 -08:00

Makefile

…

mips_ejtag_fdc.c

tty: mips_ejtag_fdc: Fix passing incompatible pointer type warning

2024-02-23 10:14:16 +01:00

moxa.c

tty: moxa: convert to u8 and size_t

2023-12-08 12:02:38 +01:00

mxser.c

tty: mxser: convert to u8 and size_t

2023-12-08 12:02:38 +01:00

n_gsm.c

tty: n_gsm: convert to u8 and size_t

2023-12-08 12:02:38 +01:00

n_hdlc.c

tty: n_hdlc: convert to u8 and size_t

2023-12-08 12:02:38 +01:00

n_null.c

tty: ldops: unify to u8

2023-08-11 21:12:47 +02:00

n_tty.c

tty: invert return values of tty_{,un}throttle_safe()

2023-10-03 14:31:15 +02:00

nozomi.c

tty: nozomi: convert to u8 and size_t

2023-12-08 12:02:38 +01:00

pty.c

tty: make tty_operations::write()'s count size_t

2023-08-11 21:12:46 +02:00

rpmsg_tty.c

tty: make tty_operations::write()'s count size_t

2023-08-11 21:12:46 +02:00

synclink_gt.c

tty: make tty_operations::write()'s count size_t

2023-08-11 21:12:46 +02:00

sysrq.c

/proc/sysrq-trigger: accept multiple keys at once

2023-11-25 07:23:16 +00:00

tty_audit.c

tty: audit: unify to u8

2023-08-11 21:12:46 +02:00

tty_baudrate.c

…

tty_buffer.c

tty: Don't include tty_buffer.h in tty.h

2024-02-18 18:59:59 +01:00

tty_io.c

Merge tag 'usb-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

2024-01-18 11:43:55 -08:00

tty_ioctl.c

tty: allow TIOCSLCKTRMIOS with CAP_CHECKPOINT_RESTORE

2023-12-15 14:20:03 +01:00

tty_jobctrl.c

tty: tty_jobctrl: fix pid memleak in disassociate_ctty()

2023-09-18 11:14:43 +02:00

tty_ldisc.c

tty: tty_ldisc: Remove the ret variable

2023-03-09 17:11:18 +01:00

tty_ldsem.c

…

tty_mutex.c

…

tty_port.c

tty: switch tty_port::xmit_* to u8

2023-12-08 12:02:37 +01:00

tty.h

tty: convert THROTTLE constants into enum

2023-10-03 14:31:16 +02:00

ttynull.c

tty: make tty_operations::write()'s count size_t

2023-08-11 21:12:46 +02:00

vcc.c

tty: vcc: Add check for kstrdup() in vcc_probe()

2023-09-18 11:14:42 +02:00