vmwgfx: Enable use of the vblank system
This is to avoid accessing uninitialized data during
drm_irq_uninstall and vblank ioctls. At the same time, enable error check from
drm_kms_init which previously appeared to ignore all errors.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
index 9142454c..58de639 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
@@ -518,6 +518,7 @@
unsigned bbp, unsigned depth);
int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
+u32 vmw_get_vblank_counter(struct drm_device *dev, int crtc);
/**
* Overlay control - vmwgfx_overlay.c