On Wed, Apr 1, 2015 at 9:15 AM, Gerd Hoffmann <kraxel@xxxxxxxxxx> wrote: > Signed-off-by: Gerd Hoffmann <kraxel@xxxxxxxxxx> Reviewed-by: Alex Deucher <alexander.deucher@xxxxxxx> > --- > drivers/gpu/drm/drm_irq.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c > index 10574a0..c631c1a 100644 > --- a/drivers/gpu/drm/drm_irq.c > +++ b/drivers/gpu/drm/drm_irq.c > @@ -1026,6 +1026,9 @@ int drm_vblank_get(struct drm_device *dev, int crtc) > unsigned long irqflags; > int ret = 0; > > + if (!dev->num_crtcs) > + return -EINVAL; > + > if (WARN_ON(crtc >= dev->num_crtcs)) > return -EINVAL; > > -- > 1.8.3.1 > > _______________________________________________ > dri-devel mailing list > dri-devel@xxxxxxxxxxxxxxxxxxxxx > http://lists.freedesktop.org/mailman/listinfo/dri-devel _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
