diff options
| -rw-r--r-- | drivers/gpu/drm/drm_crtc.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index 957fb70..c577bae 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -3638,6 +3638,12 @@ int drm_mode_page_flip_ioctl(struct drm_device *dev, goto out; } + if (crtc->fb->pixel_format != fb->pixel_format) { + DRM_DEBUG_KMS("Page flip is not allowed to change frame buffer format.\n"); + ret = -EINVAL; + goto out; + } + if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) { ret = -ENOMEM; spin_lock_irqsave(&dev->event_lock, flags); |