Daniel Starke 7d986ee198 tty: n_gsm: fix packet re-transmission without open control channel ...

[ Upstream commit 4fae831b3a71fc5a44cc5c7d0b8c1267ee7659f5 ]

In the current implementation control packets are re-transmitted even if
the control channel closed down during T2. This is wrong.
Check whether the control channel is open before re-transmitting any
packets. Note that control channel open/close is handled by T1 and not T2
and remains unaffected by this.

Fixes: e1eaea46bb40 ("tty: n_gsm line discipline")
Signed-off-by: Daniel Starke <daniel.starke@siemens.com>
Link: https://lore.kernel.org/r/20220701061652.39604-7-daniel.starke@siemens.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2022-08-25 11:11:24 +02:00

..

hvc

tty: hvc: fix return value of __setup handler

2022-04-20 09:08:20 +02:00

ipwireless

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serdev

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serial

tty: drivers/tty/, stop using tty_schedule_flip()

2022-07-29 17:06:52 +02:00

vt

tty: drivers/tty/, stop using tty_schedule_flip()

2022-07-29 17:06:52 +02:00

amiserial.c

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bfin_jtag_comm.c

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cyclades.c

tty: drivers/tty/, stop using tty_schedule_flip()

2022-07-29 17:06:52 +02:00

ehv_bytechan.c

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goldfish.c

tty: drivers/tty/, stop using tty_schedule_flip()

2022-07-29 17:06:52 +02:00

isicom.c

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Kconfig

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Makefile

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metag_da.c

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mips_ejtag_fdc.c

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moxa.c

tty: drivers/tty/, stop using tty_schedule_flip()

2022-07-29 17:06:52 +02:00

moxa.h

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mxser.c

mxser: fix xmit_buf leak in activate when LSR == 0xff

2022-04-20 09:08:19 +02:00

mxser.h

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n_gsm.c

tty: n_gsm: fix packet re-transmission without open control channel

2022-08-25 11:11:24 +02:00

n_hdlc.c

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n_null.c

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n_r3964.c

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n_tracerouter.c

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n_tracesink.c

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n_tracesink.h

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n_tty.c

n_tty: wake up poll(POLLRDNORM) on receiving data

2022-02-16 12:44:51 +01:00

nozomi.c

tty: nozomi: Fix the error handling path of 'nozomi_card_init()'

2021-07-20 16:17:40 +02:00

pty.c

tty: use new tty_insert_flip_string_and_push_buffer() in pty_write()

2022-07-29 17:06:53 +02:00

rocket_int.h

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rocket.c

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rocket.h

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synclink_gt.c

tty: synclink_gt: Fix null-pointer-dereference in slgt_clean()

2022-06-14 16:53:59 +02:00

synclink.c

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synclinkmp.c

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sysrq.c

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tty_audit.c

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tty_baudrate.c

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tty_buffer.c

tty: use new tty_insert_flip_string_and_push_buffer() in pty_write()

2022-07-29 17:06:53 +02:00

tty_io.c

tty: Fix data race between tiocsti() and flush_to_ldisc()

2021-09-22 11:45:23 +02:00

tty_ioctl.c

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tty_jobctrl.c

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tty_ldisc.c

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tty_ldsem.c

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tty_mutex.c

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tty_port.c

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vcc.c

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