Claudiu Beznea ee95d0843a serial: sh-sci: Do not probe the serial port if its slot in sci_ports[] is in use ...

commit 9f7dea875c upstream.

In the sh-sci driver, sci_ports[0] is used by earlycon. If the earlycon is
still active when sci_probe() is called and the new serial port is supposed
to map to sci_ports[0], return -EBUSY to prevent breaking the earlycon.

This situation should occurs in debug scenarios, and users should be
aware of the potential conflict.

Fixes: 0b0cced19a ("serial: sh-sci: Add CONFIG_SERIAL_EARLYCON support")
Cc: stable@vger.kernel.org
Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Link: https://lore.kernel.org/r/20250116182249.3828577-4-claudiu.beznea.uj@bp.renesas.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2025-02-17 10:05:18 +01:00

..

hvc

tty: hvc: convert comma to semicolon

2024-09-03 10:47:56 +02:00

ipwireless

tty: ipwireless: remove unused ipw_dev::attribute_memory

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

serdev

serdev: Use of_property_present()

2024-08-07 13:08:14 +02:00

serial

serial: sh-sci: Do not probe the serial port if its slot in sci_ports[] is in use

2025-02-17 10:05:18 +01:00

vt

tty: Permit some TIOCL_SETSEL modes without CAP_SYS_ADMIN

2025-02-17 10:04:57 +01:00

amiserial.c

tty: add missing MODULE_DESCRIPTION() macros

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

ehv_bytechan.c

tty: ehv_bytechan: convert to u8 and size_t

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

goldfish.c

tty: add missing MODULE_DESCRIPTION() macros

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

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 one more u8 warning

2025-02-08 09:57:59 +01:00

moxa.c

tty: moxa: convert to u8 and size_t

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

mxser.c

mxser: convert comma to semicolon

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

n_gsm.c

tty: n_gsm: Fix use-after-free in gsm_cleanup_mux

2024-10-11 08:28:17 +02:00

n_hdlc.c

tty: add missing MODULE_DESCRIPTION() macros

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

n_null.c

tty: ldops: unify to u8

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

n_tty.c

tty: n_tty: Fix buffer offsets when lookahead is used

2024-06-04 14:07:27 +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: add missing MODULE_DESCRIPTION() macros

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

sysrq.c

Merge tag 'v6.11-rc1' into for-6.12

2024-07-30 09:30:11 -10:00

tty_audit.c

tty: audit: unify to u8

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

tty_baudrate.c

tty: Fix comment style in tty_termios_input_baud_rate()

2022-08-30 14:22:34 +02:00

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: ldsic: fix tty_ldisc_autoload sysctl's proc_handler

2024-12-05 14:02:46 +01:00

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

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

tty_ldsem.c

…

tty_mutex.c

tty: remove TTY_MAGIC

2022-09-22 16:12:34 +02:00

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

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

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