drm: Ensure universal_planes is set for atomic
Atomic doesn't really work without universal planes anyway. But make
sure that evil userspace doesn't pull the kernel over the table
because we didn't consider a cornercase that just doesn't make sense,
just for safety.
v2: Just force ->universal_planes to the same value to avoid imposing
restrictions on userspace.
Cc: Rob Clark <robdclark@gmail.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c
index 5cb4058..3785d66 100644
--- a/drivers/gpu/drm/drm_ioctl.c
+++ b/drivers/gpu/drm/drm_ioctl.c
@@ -355,6 +355,7 @@
if (req->value > 1)
return -EINVAL;
file_priv->atomic = req->value;
+ file_priv->universal_planes = req->value;
break;
default:
return -EINVAL;