Alan Cox 43eca0aef7 serial_core: Fix race in uart_handle_dcd_change ...

If a serial driver is called post hangup with a second DCD event then we
will attempt to get the ldisc of NULL. Check we have a tty before trying to
do anything with it.

This is still only safe within the uart layer if the caller holds the
relevant uart locks. We could do with a version where the tty is passed for
more general use.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2012-09-21 09:51:09 -07:00

..

hvc

tty/serial: remove CONFIG_EXPERIMENTAL dependencies

2012-09-18 16:19:27 +01:00

ipwireless

tty: ipwireless: check ppp register worked

2012-09-17 04:45:30 -07:00

serial

serial_core: Fix race in uart_handle_dcd_change

2012-09-21 09:51:09 -07:00

vt

tty vt: Fix line garbage in virtual console on command line edition

2012-09-10 16:35:46 -07:00

amiserial.c

serial: add a new helper function

2012-09-05 13:28:35 -07:00

bfin_jtag_comm.c

TTY: use tty_port_link_device

2012-08-13 16:50:19 -07:00

cyclades.c

serial: add a new helper function

2012-09-05 13:28:35 -07:00

ehv_bytechan.c

TTY: use tty_port_register_device

2012-08-13 16:50:19 -07:00

isicom.c

serial: add a new helper function

2012-09-05 13:28:35 -07:00

Kconfig

tty/serial: put (EXPERIMENTAL) marking back on N_GSM and SERIAL_IFX6X60

2012-09-18 17:17:56 +01:00

Makefile

tty/powerpc: introduce the ePAPR embedded hypervisor byte channel driver

2011-08-23 10:32:56 -07:00

moxa.c

TTY: tty_alloc_driver() returns error pointers

2012-08-16 12:07:23 -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

serial: add a new helper function

2012-09-05 13:28:35 -07:00

mxser.h

Fix common misspellings

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

n_gsm.c

tty: n_gsm: Fix incorrect debug display

2012-09-17 04:45:30 -07:00

n_hdlc.c

Remove all #inclusions of asm/system.h

2012-03-28 18:30:03 +01:00

n_r3964.c

tty: localise the lock

2012-08-10 12:55:47 -07:00

n_tracerouter.c

n_tracerouter and n_tracesink ldisc additions.

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

n_tracesink.c

n_tracerouter and n_tracesink ldisc additions.

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

n_tracesink.h

n_tracerouter and n_tracesink ldisc additions.

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

n_tty.c

Remove BUG_ON from n_tty_read()

2012-08-16 11:53:14 -07:00

nozomi.c

TTY: use tty_port_register_device

2012-08-13 16:50:19 -07:00

pty.c

TTY: tty_alloc_driver() returns error pointers

2012-08-16 12:07:23 -07:00

rocket_int.h

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

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

rocket.c

TTY: use tty_port_register_device

2012-08-13 16:50:19 -07:00

rocket.h

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

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

synclink_gt.c

serial: add a new helper function

2012-09-05 13:28:35 -07:00

synclink.c

serial: add a new helper function

2012-09-05 13:28:35 -07:00

synclinkmp.c

serial: add a new helper function

2012-09-05 13:28:35 -07:00

sysrq.c

sysrq: use SEND_SIG_FORCED instead of force_sig()

2012-04-05 15:25:50 -07:00

tty_audit.c

tty_audit: fix tty_audit_add_data live lock on audit disabled

2011-03-07 12:04:50 -08:00

tty_buffer.c

tty: hold lock across tty buffer finding and buffer filling

2012-04-09 12:12:45 -07:00

tty_io.c

tty_register_device_attr updated for tty-next

2012-09-06 14:40:18 -07:00

tty_ioctl.c

tty: Fix up PPC fallout from the termios move

2012-07-17 09:10:55 -07:00

tty_ldisc.c

tty: localise the lock

2012-08-10 12:55:47 -07:00

tty_mutex.c

tty: localise the lock

2012-08-10 12:55:47 -07:00

tty_port.c

tty_register_device_attr updated for tty-next

2012-09-06 14:40:18 -07:00