Arnd Bergmann 346abf2aca tty: fix __tty_insert_flip_char regression ...

commit 8a5a90a2a4 upstream.

Sergey noticed a small but fatal mistake in __tty_insert_flip_char,
leading to an oops in an interrupt handler when using any serial
port.

The problem is that I accidentally took the tty_buffer pointer
before calling __tty_buffer_request_room(), which replaces the
buffer. This moves the pointer lookup to the right place after
allocating the new buffer space.

Fixes: 979990c628 ("tty: improve tty_insert_flip_char() fast path")
Reported-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Tested-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2017-09-27 14:39:19 +02:00

..

hvc

tty/hvc: Use opal irqchip interface if available

2016-07-27 12:38:20 +10:00

ipwireless

tty: ipwireless, cleanup TIOCGSERIAL

2016-06-25 08:56:30 -07:00

serial

serial: sh-sci: Fix late enablement of AUTORTS

2017-06-24 07:11:14 +02:00

vt

vt: fix unchecked __put_user() in tioclinux ioctls

2017-07-21 07:42:22 +02:00

amiserial.c

tty: Replace ASYNC_INITIALIZED bit and update atomically

2016-04-30 09:26:55 -07:00

bfin_jtag_comm.c

TTY: bfin_jtag_comm: remove incorrect wait_until_sent operation

2015-03-07 03:44:14 +01:00

cyclades.c

tty: stop defining STD_COM_FLAGS in drivers

2016-06-25 08:56:30 -07:00

ehv_bytechan.c

drivers/tty: make ehv_bytechan.c explicitly non-modular

2016-02-06 23:26:43 -08:00

goldfish.c

tty: goldfish: support platform_device with id -1

2016-03-07 16:11:14 -08:00

isicom.c

tty: Replace ASYNC_INITIALIZED bit and update atomically

2016-04-30 09:26:55 -07:00

Kconfig

devpts: Make each mount of devpts an independent filesystem.

2016-06-05 10:36:01 -07:00

Makefile

TTY: Add MIPS EJTAG Fast Debug Channel TTY driver

2015-03-31 12:04:12 +02:00

metag_da.c

timers, drivers/tty/metag_da: Initialize the poll timer as pinned

2016-07-07 10:25:14 +02:00

mips_ejtag_fdc.c

timers, drivers/tty/mips_ejtag: Initialize the poll timer as pinned

2016-07-07 10:34:59 +02:00

moxa.c

tty: Replace ASYNC_INITIALIZED bit and update atomically

2016-04-30 09:26:55 -07:00

moxa.h

tty: move a number of tty drivers from drivers/char/ to drivers/tty/

2011-02-22 16:14:56 -08:00

mxser.c

tty: cyclades+mxser, do not initialize to zero

2016-06-25 08:56:30 -07:00

mxser.h

Fix common misspellings

2011-03-31 11:26:23 -03:00

n_gsm.c

Merge tag 'tty-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

2016-05-20 20:57:27 -07:00

n_hdlc.c

tty: n_hdlc: get rid of racy n_hdlc.tbuf

2017-03-15 10:02:40 +08:00

n_r3964.c

tty: r3964: Replace/remove bogus tty lock use

2015-10-17 21:11:29 -07:00

n_tracerouter.c

n_tracerouter: stop including <asm-generic/bug>

2015-10-15 00:21:10 +02:00

n_tracesink.c

n_tracesink: stop including <asm-generic/bug>

2015-10-15 00:21:11 +02:00

n_tracesink.h

n_tracerouter and n_tracesink ldisc additions.

2011-05-13 16:31:00 -07:00

n_tty.c

Fix OpenSSH pty regression on close

2016-05-01 13:22:54 -07:00

nozomi.c

tty: Replace TTY_THROTTLED bit tests with tty_throttled()

2016-04-30 09:26:55 -07:00

pty.c

tty: pty: Fix ldisc flush after userspace become aware of the data already

2017-05-20 14:28:41 +02:00

rocket_int.h

tty: rocket: Remove private close_wait

2016-01-28 14:13:44 -08:00

rocket.c

TTY: add __init attribute

2016-04-30 09:26:55 -07:00

rocket.h

tty: rocket: fix comment of ROCKET_SPD_HI

2015-05-24 12:49:16 -07:00

synclink_gt.c

Merge tag 'tty-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

2016-05-20 20:57:27 -07:00

synclink.c

Merge tag 'tty-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

2016-05-20 20:57:27 -07:00

synclinkmp.c

Merge tag 'tty-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

2016-05-20 20:57:27 -07:00

sysrq.c

sysrq: attach sysrq handler correctly for 32-bit kernel

2017-01-19 20:18:03 +01:00

tty_audit.c

tty: audit: remove unused variable

2016-03-07 16:11:14 -08:00

tty_buffer.c

tty: fix __tty_insert_flip_char regression

2017-09-27 14:39:19 +02:00

tty_io.c

Merge 4.6-rc7 into tty-next

2016-05-09 09:39:13 +02:00

tty_ioctl.c

tty: Replace TTY_THROTTLED bit tests with tty_throttled()

2016-04-30 09:26:55 -07:00

tty_ldisc.c

tty: Eliminate global symbol tty_ldisc_N_TTY

2016-01-27 15:13:28 -08:00

tty_ldsem.c

tty: Deinline __ldsem_down_write_nested, save 128 bytes

2015-12-13 19:59:48 -08:00

tty_mutex.c

Merge 4.5-rc4 into tty-next

2016-02-14 14:36:04 -08:00

tty_port.c

tty: Replace ASYNC_INITIALIZED bit and update atomically

2016-04-30 09:26:55 -07:00