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(+) 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
