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remarkable-linux/drivers/tty
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Sascha Hauer 71e0779153 tty: n_gsm: do not send/receive in ldisc close path 
gsm_cleanup_mux() is called in the line discipline close path which
is called at tty_release() time. At this stage the tty is no longer
operational enough to send any frames. Sending close frames is
therefore not possible and waiting for their answers always times
out.

This patch removes sending close messages and waiting for their answers
from the tty_release path.

This patch makes explicit what previously implicitly had been the case
already: We are not able to tell the modem that we are about to close
the multiplexer on our side. This means the modem will stay in
multiplexer mode and re-establishing the multiplexer later fails. The
only way for userspace to work around this is to manually send a close
frame in N_TTY mode after closing the mux.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 		2017-06-03 18:48:52 +09:00
..
hvc drivers/tty/hvc: fix spelling mistake: "missmanaged" -> "mismanaged" 2017-05-18 16:34:55 +02:00
ipwireless tty: ipwireless, cleanup TIOCGSERIAL 2016-06-25 08:56:30 -07:00
serdev Merge 4.12-rc3 into tty-next 2017-05-29 08:18:15 +02:00
serial Fix serial console on SNI RM400 machines 2017-06-03 18:48:52 +09:00
vt tty/vt/keyboard: Remove AVR32 bits from the driver 2017-05-18 16:34:55 +02:00
Kconfig devpts: Make each mount of devpts an independent filesystem. 2016-06-05 10:36:01 -07:00
Makefile tty: handle the case where we cannot restore a line discipline 2017-06-03 18:43:46 +09:00
amiserial.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
bfin_jtag_comm.c TTY: bfin_jtag_comm: remove incorrect wait_until_sent operation 2015-03-07 03:44:14 +01:00
cyclades.c Annotate hardware config module parameters in drivers/tty/ 2017-04-20 12:02:32 +01:00
ehv_bytechan.c tty: ehv_bytechan: clean up init error handling 2017-05-18 16:43:55 +02:00
goldfish.c tty: goldfish: Fix a parameter of a call to free_irq 2017-01-12 11:51:25 +01:00
isicom.c tty: Replace ASYNC_INITIALIZED bit and update atomically 2016-04-30 09:26:55 -07:00
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 Annotate hardware config module parameters in drivers/tty/ 2017-04-20 12:02:32 +01:00
moxa.h
…
mxser.c Annotate hardware config module parameters in drivers/tty/ 2017-04-20 12:02:32 +01:00
mxser.h
…
n_gsm.c tty: n_gsm: do not send/receive in ldisc close path 2017-06-03 18:48:52 +09:00
n_hdlc.c format-security: move static strings to const 2017-05-08 17:15:14 -07:00
n_null.c tty: handle the case where we cannot restore a line discipline 2017-06-03 18:43:46 +09:00
n_r3964.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
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_tty.c Fix OpenSSH pty regression on close 2016-05-01 13:22:54 -07:00
nozomi.c tty: nozomi: avoid sprintf buffer overflow 2016-11-29 20:20:07 +01:00
pty.c tty: pty: Fix ldisc flush after userspace become aware of the data already 2017-03-17 14:16:09 +09:00
rocket.c Annotate hardware config module parameters in drivers/tty/ 2017-04-20 12:02:32 +01:00
rocket.h tty: rocket: fix comment of ROCKET_SPD_HI 2015-05-24 12:49:16 -07:00
rocket_int.h tty: rocket: Remove private close_wait 2016-01-28 14:13:44 -08:00
synclink.c Annotate hardware config module parameters in drivers/tty/ 2017-04-20 12:02:32 +01:00
synclink_gt.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
synclinkmp.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
sysrq.c oom: improve oom disable handling 2017-05-03 15:52:10 -07:00
tty_audit.c tty: audit: remove unused variable 2016-03-07 16:11:14 -08:00
tty_baudrate.c tty: move baudrate handling code to a file of its own 2017-04-18 18:01:52 +02:00
tty_buffer.c tty_port: Add port client functions 2017-02-03 10:17:02 +01:00
tty_io.c tty: fix comment for __tty_alloc_driver() 2017-04-24 13:15:39 +02:00
tty_ioctl.c tty: move baudrate handling code to a file of its own 2017-04-18 18:01:52 +02:00
tty_jobctrl.c tty: split job control support into a file of its own 2017-04-18 18:01:52 +02:00
tty_ldisc.c tty: handle the case where we cannot restore a line discipline 2017-06-03 18:43:46 +09:00
tty_ldsem.c sched/headers: Prepare to move the get_task_struct()/put_task_struct() and related APIs from <linux/sched.h> to <linux/sched/task.h> 2017-03-02 08:42:40 +01:00
tty_mutex.c Merge 4.5-rc4 into tty-next 2016-02-14 14:36:04 -08:00
tty_port.c tty/serdev: add serdev registration interface 2017-05-18 17:38:24 +02:00