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Stephane Doyon 2d237c6365 [PATCH] Console blanking locking fix 
I've had WARN_CONSOLE_UNLOCKED warnings when calling TIOCLINUX
TIOCL_BLANKSCREEN and TIOCL_UNBLANKSCREEN.

(I'm blind and I use a braille display.  I use those functions to blank my
laptop's screen so people don't read it, and hopefully to conserve power.)

The warnings are from these places:
do_blank_screen at drivers/char/vt.c:2754 (Not tainted)
save_screen at drivers/char/vt.c:575 (Not tainted)
do_unblank_screen at drivers/char/vt.c:2822 (Not tainted)
set_palette at drivers/char/vt.c:2908 (Not tainted)

At a glance I would think the following patch ought to fix that.  Tested on
one machine.  Could you please tell me if this is correct and/or forward
the patch where appropriate...

Signed-off-by: Stephane Doyon <s.doyon@videotron.ca>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-07 16:57:31 -07:00
..
agp
[PATCH] agp: restore APBASE after setting APSIZE
2005-07-29 15:01:15 -07:00
drm
drm: fix a bad VERSION check.
2005-08-23 12:15:43 +10:00
ftape
[PATCH] printk: drivers/char/ftape/compressor/zftape-compress.c
2005-06-25 16:25:02 -07:00
ip2
[PATCH] drivers/char/ip2*: cleanups
2005-06-25 16:25:06 -07:00
ipmi
[PATCH] clean up inline static vs static inline
2005-07-27 16:26:20 -07:00
mwave
[SERIAL] Convert mwave to use serial8250_(un)?register_port
2005-08-31 22:19:33 +01:00
pcmcia
[PATCH] pcmcia: remove references to pcmcia/version.h
2005-07-07 18:24:07 -07:00
rio
[PATCH] turn many #if $undefined_string into #ifdef $undefined_string
2005-07-27 16:26:08 -07:00
tpm
[PATCH] tpm_infineon: Bugfix in PNPACPI-handling
2005-09-05 00:05:37 -07:00
watchdog
Merge watchdog driver updates
2005-09-05 06:00:45 -07:00
amiserial.c
[PATCH] Serial: remove unnecessary register_serial/unregister_serial
2005-06-25 16:24:25 -07:00
applicom.c
[PATCH] printk: drivers/char/applicom.c
2005-06-25 16:25:01 -07:00
applicom.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
cd1865.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
ChangeLog
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
consolemap.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
cp437.uni
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
cyclades.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
decserial.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
defkeymap.c_shipped
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
defkeymap.map
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
digi1.h
[PATCH] Clean up the old digi support and rescue it
2005-09-07 16:57:20 -07:00
digi.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
digiFep1.h
[PATCH] Clean up the old digi support and rescue it
2005-09-07 16:57:20 -07:00
digiPCI.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
ds1286.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
ds1302.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
ds1620.c
[PATCH] char/ds1620: use msleep() instead of schedule_timeout()
2005-06-25 16:24:57 -07:00
dsp56k.c
[PATCH] class: convert drivers/char/* to use the new class api instead of class_simple
2005-06-20 15:15:08 -07:00
dtlk.c
[PATCH] misc verify_area cleanups
2005-05-01 08:59:08 -07:00
ec3104_keyb.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
efirtc.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
epca.c
[PATCH] Clean up the old digi support and rescue it
2005-09-07 16:57:20 -07:00
epca.h
[PATCH] Clean up the old digi support and rescue it
2005-09-07 16:57:20 -07:00
epcaconfig.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
esp.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
generic_nvram.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
generic_serial.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
genrtc.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
hangcheck-timer.c
[PATCH] In hangcheck-timer.c call emergency_restart()
2005-07-26 14:35:44 -07:00
hpet.c
[PATCH] hpet: do_div fix
2005-06-25 16:24:40 -07:00
hvc_console.c
[PATCH] hvc_console: Register ops when setting up hvc_console
2005-07-07 18:23:39 -07:00
hvc_vio.c
[PATCH] Make MODULE_DEVICE_TABLE work for vio devices
2005-08-30 13:31:56 +10:00
hvcs.c
[PATCH] Make MODULE_DEVICE_TABLE work for vio devices
2005-08-30 13:31:56 +10:00
hvsi.c
[PATCH] hvc_console: Use hvc_get_chars in hvsi code
2005-07-07 18:23:40 -07:00
hw_random.c
[PATCH] PCI: clean up dynamic pci id logic
2005-07-01 13:35:50 -07:00
i8k.c
[PATCH] I8K: add new BIOS signatures
2005-06-25 16:24:25 -07:00
ip2.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
ip2main.c
[PATCH] drivers/char/ip2*: cleanups
2005-06-25 16:25:06 -07:00
ip27-rtc.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
isicom.c
[PATCH] drivers/char/isicom.c: section fixes
2005-06-25 16:25:00 -07:00
istallion.c
[PATCH] drivers/char/istallion.c: remove an unneeded variable
2005-06-25 16:25:03 -07:00
ite_gpio.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
Kconfig
[PATCH] Clean up the old digi support and rescue it
2005-09-07 16:57:20 -07:00
keyboard.c
Input: check keycodesize when adjusting keymaps
2005-07-24 00:50:03 -05:00
lcd.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
lcd.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
lp.c
[PATCH] class: convert drivers/char/* to use the new class api instead of class_simple
2005-06-20 15:15:08 -07:00
Makefile
[PATCH] hvc_console: Separate hvc_console and vio code 2
2005-07-07 18:23:39 -07:00
mbcs.c
[PATCH] Driver Core: drivers/base - drivers/i2c/chips/adm1026.c: update device attribute callbacks
2005-06-20 15:15:32 -07:00
mbcs.h
[PATCH] mbcs trivial user annotations
2005-05-04 07:33:13 -07:00
mem.c
[PATCH] remove a dead extern in mem.c
2005-09-07 16:57:23 -07:00
misc.c
[PATCH] move m68k rtc drivers over to initcalls
2005-09-07 16:57:23 -07:00
mmtimer.c
[PATCH] mmtimer build fix
2005-04-16 15:23:53 -07:00
moxa.c
[SERIAL] Fix moxa tty driver name
2005-09-03 16:26:49 +01:00
mxser.c
[MOXA]: Fix this driver properly.
2005-09-05 23:30:15 -07:00
mxser.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
n_hdlc.c
[PATCH] Convert users to tty_unregister_ldisc()
2005-06-23 09:45:36 -07:00
n_r3964.c
[PATCH] Convert users to tty_unregister_ldisc()
2005-06-23 09:45:36 -07:00
n_tty.c
[PATCH] tty output lossage fix
2005-07-07 18:23:45 -07:00
nvram.c
[PATCH] drivers/char/nvram.c: possible cleanups
2005-06-25 16:25:03 -07:00
nwbutton.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
nwbutton.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
nwflash.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
ppdev.c
[PATCH] class: convert drivers/char/* to use the new class api instead of class_simple
2005-06-20 15:15:08 -07:00
pty.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
qtronix.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
qtronixmap.c_shipped
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
qtronixmap.map
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
random.c
[RANDOM]: Introduce secure_dccp_sequence_number
2005-08-29 15:49:40 -07:00
raw.c
[PATCH] class: convert drivers/char/* to use the new class api instead of class_simple
2005-06-20 15:15:08 -07:00
riscom8_reg.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
riscom8.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
riscom8.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
rocket_int.h
[PATCH] drivers/char/rocket.c: cleanups
2005-06-25 16:25:04 -07:00
rocket.c
[PATCH] rocket.c: Fix ldisc ref count handling
2005-07-15 09:54:51 -07:00
rocket.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
rtc.c
[RTC]: Use SA_SHIRQ in sparc specific code.
2005-09-05 23:33:05 -07:00
s3c2410-rtc.c
[PATCH] ARM: RTC: allow driver methods to return error
2005-04-30 12:19:28 +01:00
scan_keyb.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
scan_keyb.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
scc.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
scx200_gpio.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
selection.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
ser_a2232.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
ser_a2232.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
ser_a2232fw.ax
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
ser_a2232fw.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
serial167.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
snsc_event.c
[IA64-SGI] fix unaligned memory access in snsc_event.c
2005-08-15 14:17:49 -07:00
snsc.c
[PATCH] Fix typo in scdrv_init()
2005-06-20 15:15:27 -07:00
snsc.h
[IA64] Altix system controller event handling
2005-04-25 13:28:52 -07:00
sonypi.c
[PATCH] sonypi: remove obsolete event
2005-09-07 16:57:24 -07:00
specialix_io8.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
specialix.c
[PATCH] misc verify_area cleanups
2005-05-01 08:59:08 -07:00
stallion.c
[PATCH] class: convert drivers/char/* to use the new class api instead of class_simple
2005-06-20 15:15:08 -07:00
sx.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
sx.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
sxboards.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
sxwindow.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
synclink.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
synclinkmp.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
sysrq.c
[PATCH] Update sysrq-B to use emergency_restart()
2005-07-26 14:35:43 -07:00
tb0219.c
[PATCH] TB0219: add PCI IRQ initialization
2005-07-12 16:01:02 -07:00
tipar.c
[PATCH] drivers/char/tipar.c: off by one array access
2005-06-28 21:20:29 -07:00
toshiba.c
[PATCH] Toshiba driver cleanup
2005-06-25 16:24:24 -07:00
tty_io.c
[PATCH] move 68360serial.c over use initcalls
2005-09-07 16:57:24 -07:00
tty_ioctl.c
[PATCH] coverity: tty_ldisc_ref return null check
2005-06-28 21:20:34 -07:00
vc_screen.c
[PATCH] class: convert drivers/char/* to use the new class api instead of class_simple
2005-06-20 15:15:08 -07:00
viocons.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
viotape.c
[PATCH] Make MODULE_DEVICE_TABLE work for vio devices
2005-08-30 13:31:56 +10:00
vme_scc.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
vr41xx_giu.c
[PATCH] mips: add vr41xx gpio support
2005-06-21 18:46:32 -07:00
vr41xx_rtc.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
vt_ioctl.c
[PATCH] Adapt drivers/char/vt_ioctl.c to non-x86
2005-06-28 21:20:30 -07:00
vt.c
[PATCH] Console blanking locking fix
2005-09-07 16:57:31 -07:00