Geert Uytterhoeven 1cf4a7efdc serial: sh-sci: Fix race condition causing garbage during shutdown ...

If DMA is enabled and used, a burst of old data may be seen on the
serial console during "poweroff" or "reboot".  uart_flush_buffer()
clears the circular buffer, but sci_port.tx_dma_len is not reset.
This leads to a circular buffer overflow, dumping (UART_XMIT_SIZE -
sci_port.tx_dma_len) bytes.

To fix this, add a .flush_buffer() callback that resets
sci_port.tx_dma_len.

Inspired by commit 31ca2c63fdc0aee7 ("tty/serial: atmel: fix race
condition (TX+DMA)").

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2017-05-18 16:19:16 +02:00

..

hvc

tty/hvc_console: fix console lock ordering with spinlock

2017-03-31 11:37:13 +02:00

ipwireless

tty: ipwireless, cleanup TIOCGSERIAL

2016-06-25 08:56:30 -07:00

serdev

TTY/Serial patches for 4.12-rc1

2017-05-08 18:49:23 -07:00

serial

serial: sh-sci: Fix race condition causing garbage during shutdown

2017-05-18 16:19:16 +02:00

vt

vt: make mouse selection of non-ASCII consistent

2017-04-11 21:39:15 +02:00

amiserial.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

bfin_jtag_comm.c

…

cyclades.c

Annotate hardware config module parameters in drivers/tty/

2017-04-20 12:02:32 +01:00

ehv_bytechan.c

drivers/tty: make ehv_bytechan.c explicitly non-modular

2016-02-06 23:26:43 -08:00

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

Kconfig

devpts: Make each mount of devpts an independent filesystem.

2016-06-05 10:36:01 -07:00

Makefile

tty: split job control support into a file of its own

2017-04-18 18:01:52 +02:00

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: Use net_device_stats from struct net_device

2017-03-17 14:14:00 +09:00

n_hdlc.c

format-security: move static strings to const

2017-05-08 17:15:14 -07:00

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_int.h

tty: rocket: Remove private close_wait

2016-01-28 14:13:44 -08:00

rocket.c

Annotate hardware config module parameters in drivers/tty/

2017-04-20 12:02:32 +01:00

rocket.h

…

synclink_gt.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

synclink.c

Annotate hardware config module parameters in drivers/tty/

2017-04-20 12:02:32 +01:00

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

Revert "tty: don't panic on OOM in tty_set_ldisc()"

2017-04-14 10:59:56 +02:00

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

sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>

2017-03-02 08:42:32 +01:00