Ryo Takakura e1ca3ff28a serial: sifive: lock port in startup()/shutdown() callbacks ...

startup()/shutdown() callbacks access SIFIVE_SERIAL_IE_OFFS.
The register is also accessed from write() callback.

If console were printing and startup()/shutdown() callback
gets called, its access to the register could be overwritten.

Add port->lock to startup()/shutdown() callbacks to make sure
their access to SIFIVE_SERIAL_IE_OFFS is synchronized against
write() callback.

Fixes: 45c054d081 ("tty: serial: add driver for the SiFive UART")
Signed-off-by: Ryo Takakura <ryotkkr98@gmail.com>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Cc: stable@vger.kernel.org
Reviewed-by: John Ogness <john.ogness@linutronix.de>
Rule: add
Link: https://lore.kernel.org/stable/20250330003522.386632-1-ryotkkr98%40gmail.com
Link: https://lore.kernel.org/r/20250412001847.183221-1-ryotkkr98@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2025-04-15 15:02:39 +02:00

..

hvc

s390: Convert MACHINE_IS_[LPAR|VM|KVM], etc, machine_is_[lpar|vm|kvm]()

2025-03-04 17:18:07 +01:00

ipwireless

treewide: Switch/rename to timer_delete[_sync]()

2025-04-05 10:30:12 +02:00

serdev

tty: serdev: drop serdev_controller_ops::write_room()

2025-03-20 08:00:51 -07:00

serial

serial: sifive: lock port in startup()/shutdown() callbacks

2025-04-15 15:02:39 +02:00

vt

tty: Require CAP_SYS_ADMIN for all usages of TIOCL_SELMOUSEREPORT

2025-04-11 16:59:19 +02:00

amiserial.c

Get rid of 'remove_new' relic from platform driver struct

2024-12-01 15:12:43 -08:00

ehv_bytechan.c

tty: ehv_bytechan: convert to u8 and size_t

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

goldfish.c

Get rid of 'remove_new' relic from platform driver struct

2024-12-01 15:12:43 -08:00

Kconfig

Merge tag 'tty-6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

2025-04-02 18:17:33 -07:00

Makefile

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mips_ejtag_fdc.c

treewide: Switch/rename to timer_delete[_sync]()

2025-04-05 10:30:12 +02:00

moxa.c

treewide: Switch/rename to timer_delete[_sync]()

2025-04-05 10:30:12 +02:00

mxser.c

mxser: convert comma to semicolon

2024-09-03 10:47:47 +02:00

n_gsm.c

treewide: Switch/rename to timer_delete[_sync]()

2025-04-05 10:30:12 +02:00

n_hdlc.c

tty: add missing MODULE_DESCRIPTION() macros

2024-06-24 16:10:11 +02:00

n_null.c

…

n_tty.c

tty: n_tty: move more_to_be_read to the end of n_tty_read()

2025-03-20 08:00:51 -07:00

nozomi.c

tty: nozomi: convert to u8 and size_t

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

pty.c

fsnotify: use accessor to set FMODE_NONOTIFY_*

2025-02-07 10:27:26 +01:00

rpmsg_tty.c

…

synclink_gt.c

treewide: Switch/rename to timer_delete[_sync]()

2025-04-05 10:30:12 +02:00

sysrq.c

treewide: Switch/rename to timer_delete[_sync]()

2025-04-05 10:30:12 +02:00

tty_audit.c

tty: audit: do not use N_TTY_BUF_SIZE

2025-03-20 08:00:50 -07:00

tty_baudrate.c

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tty_buffer.c

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

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

tty_io.c

tty: tty_driver: document both {,__}tty_alloc_driver() properly

2025-03-20 08:00:51 -07:00

tty_ioctl.c

tty: allow TIOCSLCKTRMIOS with CAP_CHECKPOINT_RESTORE

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

tty_jobctrl.c

…

tty_ldisc.c

tty: add the option to have a tty reject a new ldisc

2024-05-04 18:45:11 +02:00

tty_ldsem.c

tty/ldsem: Remove unused ldsem_down_write_trylock

2025-02-04 14:38:42 +01:00

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: add missing MODULE_DESCRIPTION() macros

2024-06-24 16:10:11 +02:00

vcc.c

treewide: Switch/rename to timer_delete[_sync]()

2025-04-05 10:30:12 +02:00