On Mon, Nov 05, 2018 at 09:23:08PM +0800, Icenowy Zheng wrote:
> 在 2018-10-08一的 11:21 +0200，Maxime Ripard写道：
> > On Fri, Oct 05, 2018 at 11:59:51PM +0200, Giulio Benetti wrote:
> > > If tcon->panel pointer is NULL, trying to dereference from it
> > > (i.e. tcon->panel->connector) will cause a null pointer
> > > dereference.
> > >
> > > Add tcon->panel null pointer check before calling
> > > sun4i_tcon0_mode_set_dithering().
> > >
> > > Signed-off-by: Giulio Benetti <giulio.benetti@xxxxxxxxxxxxxxxx>
> > > Fixes: f11adcecbd5f ("drm/sun4i: tcon: Add dithering support for
> > > RGB565/RGB666 LCD panels")
> > > Reviewed-by: Chen-Yu Tsai <wens@xxxxxxxx>
> >
> > Applied both, thanks!
>
> Please bring them to 4.20.
>
> Currently in 4.20-rc1, bridge support of sun4i-drm is broken because of
> this problem.
I've merged them in drm-misc-fixes, thanks!
Maxime
--
Maxime Ripard, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com
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