On Mon, Jan 31, 2022 at 10:05:36PM +0100, Daniel Vetter wrote: > Half of it is protected by console_lock, but the other half is a lot > more awkward: Registration/deregistration of fbdev are serialized, but > we don't really clear out anything in con2fb_map and so there's > potential for use-after free mixups. > > First step is to encapsulate the lookup. > > Signed-off-by: Daniel Vetter <daniel.vet...@intel.com> > Cc: Helge Deller <del...@gmx.de> > Cc: Daniel Vetter <dan...@ffwll.ch> > Cc: Greg Kroah-Hartman <gre...@linuxfoundation.org> > Cc: Tetsuo Handa <penguin-ker...@i-love.sakura.ne.jp> > Cc: Du Cheng <duche...@gmail.com> > Cc: Claudio Suarez <c...@net-c.es> > Cc: Thomas Zimmermann <tzimmerm...@suse.de> Acked-by: Sam Ravnborg <s...@ravnborg.org>
