Johan Hovold cf3c30a711 serdev: ttyport: restore client ops on deregistration ... commit 0c5aae5927 upstream. The serdev tty-port controller driver should reset the tty-port client operations also on deregistration to avoid a NULL-pointer dereference in case the port is later re-registered as a normal tty device. Note that this can only happen with tty drivers such as 8250 which have statically allocated port structures that can end up being reused and where a later registration would not register a serdev controller (e.g. due to registration errors or if the devicetree has been changed in between). Specifically, this can be an issue for any statically defined ports that would be registered by 8250 core when an 8250 driver is being unbound. Fixes: bed35c6dfa ("serdev: add a tty port controller driver") Cc: stable <stable@vger.kernel.org> # 4.11 Reported-by: Loic Poulain <loic.poulain@linaro.org> Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20200210145730.22762-1-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2020-02-28 17:22:19 +01:00
..
hvc	tty: hvcs: Fix odd use of strlcpy	2019-09-04 12:43:44 +02:00
ipwireless
serdev	serdev: ttyport: restore client ops on deregistration	2020-02-28 17:22:19 +01:00
serial	tty: serial: qcom_geni_serial: Fix RX cancel command failure	2020-02-28 17:22:19 +01:00
vt	vt: vt_ioctl: fix race in VT_RESIZEX	2020-02-28 17:22:14 +01:00
amiserial.c
cyclades.c
ehv_bytechan.c
goldfish.c
isicom.c	tty/isicom: remove redundant assignment to variable word_count	2019-09-04 12:43:44 +02:00
Kconfig	docs: serial: move it to the driver-api	2019-07-15 11:03:03 -03:00
Makefile
mips_ejtag_fdc.c
moxa.c
moxa.h
mxser.c
mxser.h
n_gsm.c	tty: n_gsm: avoid recursive locking with async port hangup	2019-09-04 12:43:56 +02:00
n_hdlc.c	tty: n_hdlc: fix build on SPARC	2019-10-04 15:14:20 +02:00
n_null.c
n_r3964.c
n_tracerouter.c
n_tracesink.c
n_tracesink.h
n_tty.c
nozomi.c	tty: nozomi: Use dev_get_drvdata	2019-09-04 12:43:44 +02:00
pty.c
rocket.c
rocket.h
rocket_int.h
synclink.c
synclink_gt.c	tty: synclink_gt: Adjust indentation in several functions	2020-02-24 08:36:47 +01:00
synclinkmp.c	tty: synclinkmp: Adjust indentation in several functions	2020-02-24 08:36:47 +01:00
sysrq.c
tty_audit.c
tty_baudrate.c
tty_buffer.c
tty_io.c	drivers: Introduce device lookup variants by device type	2019-07-30 13:07:42 +02:00
tty_ioctl.c
tty_jobctrl.c
tty_ldisc.c	proc/sysctl: add shared variables for range check	2019-07-18 17:08:07 -07:00
tty_ldsem.c	tty/ldsem, locking/rwsem: Add missing ACQUIRE to read_failed sleep loop	2019-07-25 15:39:24 +02:00
tty_mutex.c
tty_port.c	serdev: ttyport: restore client ops on deregistration	2020-02-28 17:22:19 +01:00
ttynull.c
vcc.c