Andrea Righi 66c1ca0190 fbmem: fix fb_info->lock and mm->mmap_sem circular locking dependency ... Fix a circular locking dependency in the frame buffer console driver pushing down the mutex fb_info->lock. Circular locking dependecies occur calling the blocking fb_notifier_call_chain() with fb_info->lock held. Notifier callbacks can try to acquire mm->mmap_sem, while fb_mmap() acquires the locks in the reverse order mm->mmap_sem => fb_info->lock. Tested-by: Andrey Borzenkov <arvidjaar@mail.ru> Signed-off-by: Andrea Righi <righi.andrea@gmail.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2009-04-01 08:59:29 -07:00
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.gitignore
bitblit.c
dummycon.c
fbcon.c	fbmem: fix fb_info->lock and mm->mmap_sem circular locking dependency	2009-04-01 08:59:29 -07:00
fbcon.h
fbcon_ccw.c
fbcon_cw.c
fbcon_rotate.c
fbcon_rotate.h
fbcon_ud.c
font_6x11.c
font_7x14.c
font_8x8.c
font_8x16.c
font_10x18.c
font_acorn_8x8.c
font_mini_4x6.c
font_pearl_8x8.c
font_sun8x16.c
font_sun12x22.c
fonts.c
Kconfig
Makefile
mdacon.c
newport_con.c
prom.uni
promcon.c
softcursor.c
sticon.c
sticore.c
tileblit.c
vgacon.c	trivial: fix then -> than typos in comments and documentation	2009-01-06 11:28:06 +01:00