On Fri, Apr 06, 2018 at 05:23:23PM +0200, Lucas Stach wrote: > If no display is connected or the display modes are incompatible with > the scanout hardware we might end up with a registered framebuffer with > no modes. Trying to enable such a framebuffer will blow up with NULL > ptr dereferences in various places, so just don't do it. > > Signed-off-by: Lucas Stach <l.stach@xxxxxxxxxxxxxx> > --- > drivers/video/fb.c | 3 +++ > 1 file changed, 3 insertions(+) Applied, thanks Sascha > > diff --git a/drivers/video/fb.c b/drivers/video/fb.c > index 004df1e604d6..599ac5b75e0a 100644 > --- a/drivers/video/fb.c > +++ b/drivers/video/fb.c > @@ -124,6 +124,9 @@ static int fb_enable_set(struct param_d *param, void *priv) > struct fb_info *info = priv; > int enable; > > + if (!info->mode) > + return -EINVAL; > + > enable = info->p_enable; > > if (enable) > -- > 2.16.1 > > > _______________________________________________ > barebox mailing list > barebox@xxxxxxxxxxxxxxxxxxx > http://lists.infradead.org/mailman/listinfo/barebox > -- Pengutronix e.K. | | Industrial Linux Solutions | http://www.pengutronix.de/ | Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
