linux/drivers/tty
daniel.starke@siemens.com 687f9ad43c tty: n_gsm: fix wrong modem processing in convergence layer type 2
The function gsm_process_modem() exists to handle modem status bits of
incoming frames. This includes incoming MSC (modem status command) frames
and convergence layer type 2 data frames. The function, however, was only
designed to handle MSC frames as it expects the command length. Within
gsm_dlci_data() it is wrongly assumed that this is the same as the data
frame length. This is only true if the data frame contains only 1 byte of
payload.

This patch names the length parameter of gsm_process_modem() in a generic
manner to reflect its association. It also corrects all calls to the
function to handle the variable number of modem status octets correctly in
both cases.

Fixes: 7263287af9 ("tty: n_gsm: Fixed logic to decode break signal from modem status")
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Starke <daniel.starke@siemens.com>
Link: https://lore.kernel.org/r/20220218073123.2121-6-daniel.starke@siemens.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-02-21 19:51:04 +01:00
..
hvc xen/console: harden hvc_xen against event channel storms 2021-12-16 08:24:08 +01:00
ipwireless tty: drop put_tty_driver 2021-07-27 12:17:21 +02:00
serdev Revert "serdev: BREAK/FRAME/PARITY/OVERRUN notification prototype V2" 2021-12-31 13:42:30 +01:00
serial serial: 8250_pericom: Revert "Re-enable higher baud rates" 2022-02-04 15:32:05 +01:00
vt vt_ioctl: add array_index_nospec to VT_ACTIVATE 2022-02-04 15:36:02 +01:00
amiserial.c tty: drop put_tty_driver 2021-07-27 12:17:21 +02:00
ehv_bytechan.c tty: drop put_tty_driver 2021-07-27 12:17:21 +02:00
goldfish.c tty: goldfish: Use platform_get_irq() to get the interrupt 2021-12-30 13:50:05 +01:00
Kconfig tty: add rpmsg driver 2021-10-21 12:35:35 +02:00
Makefile tty: add rpmsg driver 2021-10-21 12:35:35 +02:00
mips_ejtag_fdc.c tty: mips_ejtag_fdc: Make use of the helper function kthread_run_on_cpu() 2021-12-03 16:00:41 +01:00
moxa.c tty: drivers/tty/, stop using tty_schedule_flip() 2021-11-25 18:35:23 +01:00
mxser.c mxser: use PCI_DEVICE_DATA 2021-11-25 18:33:22 +01:00
n_gsm.c tty: n_gsm: fix wrong modem processing in convergence layer type 2 2022-02-21 19:51:04 +01:00
n_hdlc.c Linux 5.16-rc6 2021-12-20 10:00:30 +01:00
n_null.c
n_tty.c n_tty: wake up poll(POLLRDNORM) on receiving data 2022-01-31 14:31:28 +01:00
nozomi.c tty: drop put_tty_driver 2021-07-27 12:17:21 +02:00
pty.c
rpmsg_tty.c tty: rpmsg: Fix race condition releasing tty port 2022-01-26 14:50:26 +01:00
synclink_gt.c tty: synclink_gt: rename a conflicting function name 2021-09-14 10:51:37 +02:00
sysrq.c TTY / Serial driver update for 5.16-rc1 2021-11-04 09:09:37 -07:00
tty_audit.c
tty_baudrate.c tty: baudrate: Explicit usage of B0 for encoding input baudrate 2021-10-05 15:00:56 +02:00
tty_buffer.c tty: reformat kernel-doc in tty_buffer.c 2021-11-26 16:27:43 +01:00
tty_io.c tty: tty_io: Switch to vmalloc() fallback in case of TTY_NO_WRITE_SPLIT 2021-12-21 09:18:44 +01:00
tty_ioctl.c tty: remove file from n_tty_ioctl_helper 2021-09-22 16:59:13 +02:00
tty_jobctrl.c
tty_ldisc.c tty: reformat kernel-doc in tty_ldisc.c 2021-11-26 16:27:43 +01:00
tty_ldsem.c tty/ldsem: Fix syntax errors in comments 2021-12-21 09:15:49 +01:00
tty_mutex.c
tty_port.c tty: add kernel-doc for more tty_port functions 2021-11-26 16:27:43 +01:00
tty.h
ttynull.c tty: drop put_tty_driver 2021-07-27 12:17:21 +02:00
vcc.c tty: drop put_tty_driver 2021-07-27 12:17:21 +02:00