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Merge branch 'linux-linaro-lsk-v4.4-android' of git://git.linaro.org/kernel/linux...
[firefly-linux-kernel-4.4.55.git]
/
drivers
/
gpu
/
drm
/
drm_crtc.c
diff --git
a/drivers/gpu/drm/drm_crtc.c
b/drivers/gpu/drm/drm_crtc.c
index 4900d2f76e2494a37fc0940290c55493ae4cfb44..29d13ef24996f87feb2f9e16d232487d189531d6 100644
(file)
--- a/
drivers/gpu/drm/drm_crtc.c
+++ b/
drivers/gpu/drm/drm_crtc.c
@@
-5365,6
+5365,9
@@
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;