linux-stable/drivers/tty
Nicolas Pitre a6dbe44275 vt: perform safe console erase in the right order
Commit 4b4ecd9cb8 ("vt: Perform safe console erase only once") removed
what appeared to be an extra call to scr_memsetw(). This missed the fact
that set_origin() must be called before clearing the screen otherwise
old screen content gets restored on the screen when using vgacon. Let's
fix that by moving all the scrollback handling to flush_scrollback()
where it logically belongs, and invoking it before the actual screen
clearing in csi_J(), making the code simpler in the end.

Reported-by: Matthew Whitehead <tedheadster@gmail.com>
Signed-off-by: Nicolas Pitre <nico@linaro.org>
Tested-by: Matthew Whitehead <tedheadster@gmail.com>
Fixes: 4b4ecd9cb8 ("vt: Perform safe console erase only once")
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-02-12 10:46:11 +01:00
..
hvc tty: Use of_node_name_{eq,prefix} for node name comparisons 2018-12-17 16:12:17 +01:00
ipwireless tty: ipwireless: Fix potential NULL pointer dereference 2019-01-30 12:03:58 +01:00
serdev serdev: ttyport: call tiocmget and tiocmset ops directly 2019-01-30 11:48:08 +01:00
serial serial: 8250_pci: Replace custom code with pci_match_id() 2019-02-11 09:55:50 +01:00
vt vt: perform safe console erase in the right order 2019-02-12 10:46:11 +01:00
amiserial.c kill TIOCSERGSTRUCT 2018-10-13 00:50:53 -04:00
cyclades.c cyclades: switch to ->[sg]et_serial() 2018-10-13 00:50:30 -04:00
ehv_bytechan.c tty: Convert to using %pOFn instead of device_node.name 2018-09-18 16:07:25 +02:00
goldfish.c headers: separate linux/mod_devicetable.h from linux/platform_device.h 2018-07-07 17:52:26 +02:00
isicom.c isicom: switch to ->[sg]et_serial() 2018-10-13 00:50:31 -04:00
Kconfig tty: ldisc: add sysctl to prevent autoloading of ldiscs 2019-01-30 09:31:30 +01:00
Makefile tty: remove bfin_jtag_comm and hvc_bfin_jtag drivers 2018-03-26 15:57:24 +02:00
mips_ejtag_fdc.c
moxa.c moxa: switch to ->[sg]et_serial() 2018-10-13 00:50:32 -04:00
moxa.h
mxser.c mxser: switch to ->[sg]et_serial() 2018-10-13 00:50:32 -04:00
mxser.h
n_gsm.c n_gsm: Constify u8 and unsigned char usage 2019-01-18 12:57:40 +01:00
n_hdlc.c tty/n_hdlc: fix __might_sleep warning 2019-01-18 13:27:54 +01:00
n_null.c
n_r3964.c tty: Don't block on IO when ldisc change is pending 2018-12-05 12:16:33 +01:00
n_tracerouter.c
n_tracesink.c
n_tracesink.h
n_tty.c n_tty: update comment for WAKEUP_CHARS define 2019-01-18 13:25:11 +01:00
nozomi.c tty/nozomi: use pci_iomap instead of ioremap_nocache 2019-02-12 10:26:45 +01:00
pty.c pty: fix compat ioctls 2018-10-13 00:50:51 -04:00
rocket.c tty: rocket: Fix possible buffer overwrite on register_PCI 2018-08-02 10:11:32 +02:00
rocket.h
rocket_int.h
synclink.c tty/synclink: remove ISA support 2019-02-12 08:51:33 +01:00
synclink_gt.c synclink_gt(): fix compat_ioctl() 2018-10-13 00:50:52 -04:00
synclinkmp.c synclink: reduce pointless checks in ->ioctl() 2018-10-13 00:50:43 -04:00
sysrq.c sysrq: Remove duplicated sysrq message 2019-01-22 13:46:53 +01:00
tty_audit.c audit: use current whenever possible 2018-11-26 18:41:21 -05:00
tty_baudrate.c termios, tty/tty_baudrate.c: fix buffer overrun 2018-11-08 03:36:45 -08:00
tty_buffer.c tty: increase the default flip buffer limit to 2*640K 2019-01-30 12:03:58 +01:00
tty_io.c tty: ldisc: add sysctl to prevent autoloading of ldiscs 2019-01-30 09:31:30 +01:00
tty_ioctl.c move compat handling of tty ioctls to tty_compat_ioctl() 2018-09-14 11:12:17 -04:00
tty_jobctrl.c
tty_ldisc.c tty: ldisc: add sysctl to prevent autoloading of ldiscs 2019-01-30 09:31:30 +01:00
tty_ldsem.c tty/ldsem: Decrement wait_readers on timeouted down_read() 2018-12-05 12:16:33 +01:00
tty_mutex.c
tty_port.c tty: do not set TTY_IO_ERROR flag if console port 2018-11-27 09:58:11 +01:00
vcc.c