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.st...@pengutronix.de>
> ---
>  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@lists.infradead.org
> 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@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/barebox

Reply via email to