linux/drivers/video/console
Geoff Levand beaa4867ee fbcon: fix workqueue shutdown
Add a call to cancel_work_sync() in fbcon_exit() to cancel any pending
work in the fbcon workqueue.

The current implementation of fbcon_exit() sets the fbcon workqueue
function info->queue.func to NULL, but does not assure that there is no
work pending when it does so.  On occasion, depending on system timing,
there will still be pending work in the queue when fbcon_exit() is
called.  This results in a null pointer deference when run_workqueue()
tries to call the queue's work function.

Fixes errors on shutdown similar to these:

  Console: switching to colour dummy device 80x25
  Unable to handle kernel paging request for data at address 0x00000000

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-12-10 08:01:53 -08:00
..
.gitignore sparc: Ignore drivers/video/console/promcon_tbl.c conmakehash generated file 2008-07-30 16:49:52 -07:00
bitblit.c fbcon: fix color generation for monochrome framebuffer 2008-02-06 10:41:18 -08:00
dummycon.c Remove magic macros for screen_info structure members 2007-10-16 22:57:17 -07:00
fbcon.c fbcon: fix workqueue shutdown 2008-12-10 08:01:53 -08:00
fbcon.h fbcon: fix monochrome color value calculation 2008-10-02 15:53:13 -07:00
fbcon_ccw.c fbcon: fix color generation for monochrome framebuffer 2008-02-06 10:41:18 -08:00
fbcon_cw.c fbcon: fix color generation for monochrome framebuffer 2008-02-06 10:41:18 -08:00
fbcon_rotate.c
fbcon_rotate.h
fbcon_ud.c fbcon: fix color generation for monochrome framebuffer 2008-02-06 10:41:18 -08:00
font_6x11.c fbcon: Convert struct font_desc to use ISO C initializers 2007-10-16 09:43:17 -07:00
font_7x14.c fbcon: Convert struct font_desc to use ISO C initializers 2007-10-16 09:43:17 -07:00
font_8x8.c fbcon: Convert struct font_desc to use ISO C initializers 2007-10-16 09:43:17 -07:00
font_8x16.c export font_vga_8x16 2007-10-16 09:43:19 -07:00
font_10x18.c fbcon: Convert struct font_desc to use ISO C initializers 2007-10-16 09:43:17 -07:00
font_acorn_8x8.c fbcon: Convert struct font_desc to use ISO C initializers 2007-10-16 09:43:17 -07:00
font_mini_4x6.c fbcon: Convert struct font_desc to use ISO C initializers 2007-10-16 09:43:17 -07:00
font_pearl_8x8.c fbcon: Convert struct font_desc to use ISO C initializers 2007-10-16 09:43:17 -07:00
font_sun8x16.c fbcon: Convert struct font_desc to use ISO C initializers 2007-10-16 09:43:17 -07:00
font_sun12x22.c fbcon: Convert struct font_desc to use ISO C initializers 2007-10-16 09:43:17 -07:00
fonts.c cleanup after APUS removal 2008-02-06 10:41:01 -08:00
Kconfig x86 setup: remove remnants of CONFIG_VIDEO_SELECT (read: vga=) 2008-09-03 14:12:39 -07:00
Makefile
mdacon.c Revert "vt: fix background color on line feed" 2008-10-14 12:12:02 -07:00
newport_con.c netport_con.c: fix build errors and warnings 2007-10-18 14:37:17 -07:00
prom.uni
promcon.c
softcursor.c fbdev: change asm/uaccess.h to linux/uaccess.h 2007-10-16 09:43:17 -07:00
sticon.c Revert "vt: fix background color on line feed" 2008-10-14 12:12:02 -07:00
sticore.c sticore: don't activate unsupported GSC STI cards on HPPA 2008-07-30 09:41:43 -07:00
tileblit.c fbcon: fix color generation for monochrome framebuffer 2008-02-06 10:41:18 -08:00
vgacon.c vgacon: vgacon_scrolldelta simplification 2008-10-16 11:21:45 -07:00