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drm: Reject page_flip for !DRIVER_MODESET
[pandora-kernel.git]
/
drivers
/
gpu
/
drm
/
drm_crtc.c
diff --git
a/drivers/gpu/drm/drm_crtc.c
b/drivers/gpu/drm/drm_crtc.c
index
20110b4
..
4ca454b
100644
(file)
--- a/
drivers/gpu/drm/drm_crtc.c
+++ b/
drivers/gpu/drm/drm_crtc.c
@@
-2675,6
+2675,9
@@
int drm_mode_page_flip_ioctl(struct drm_device *dev,
unsigned long flags;
int ret = -EINVAL;
+ if (!drm_core_check_feature(dev, DRIVER_MODESET))
+ return -EINVAL;
+
if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS ||
page_flip->reserved != 0)
return -EINVAL;