tree c7840212a8dbc2002734e20ed2e3b0e8f63c857c
parent b1367d2a2817e6199092b43fe01c1eed3374c4e4
author Guido Guenther <agx@sigxcpu.org> 1154253861 -0700
committer Linus Torvalds <torvalds@g5.osdl.org> 1154377725 -0700

[PATCH] rivafb/nvidiafb: race between register_framebuffer and *_bl_init

Since we now use the generic backlight infrastructure, I think we need to
call rivafb_bl_init before calling register_framebuffer since otherwise
rivafb_bl_init might race with the framebuffer layer already opening the
device and setting up the video mode.  In this case we might end up with a
not yet fully intialized backlight (info->bl_dev still NULL) when calling
riva_bl_set_power via rivafb_set_par/rivafb_load_video_mode and the kernel
dies without any further notice during boot.

This fixes booting current git on a PB 6,1.  In this case radeonfb/atyfb
would be affected too - I can fix that too but don't have any hardware to
test this on.

Cc: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>