drm/nouveau/core: support versioned firmware loading

[linux-2.6-microblaze.git] / drivers / gpu / drm / drm_crtc.c

diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index 7dabbaf..790ba59 100644 (file)
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -559,6 +559,10 @@ int drm_mode_setcrtc(struct drm_device *dev, void *data,
 
        plane = crtc->primary;
 
+       /* allow disabling with the primary plane leased */
+       if (crtc_req->mode_valid && !drm_lease_held(file_priv, plane->base.id))
+               return -EACCES;
+
        mutex_lock(&crtc->dev->mode_config.mutex);
        DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx,
                                   DRM_MODESET_ACQUIRE_INTERRUPTIBLE, ret);