linux/drivers/tty
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 TTY/Serial driver update for 6.9-rc1 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 USB / Thunderbolt changes for 6.8-rc1 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