1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/gpu/drm/drm_auth.c b/drivers/gpu/drm/drm_auth.c
index aad468d170a7..d9c0f7573905 100644
--- a/drivers/gpu/drm/drm_auth.c
+++ b/drivers/gpu/drm/drm_auth.c
@@ -230,6 +230,12 @@ int drm_dropmaster_ioctl(struct drm_device *dev, void *data,
         if (!dev->master)
                 goto out_unlock;
 
+        if (file_priv->master->lessor != NULL) {
+                DRM_DEBUG_LEASE("Attempt to drop lessee %d as master\n", file_priv->master->lessee_id);
+                ret = -EINVAL;
+                goto out_unlock;
+        }
+
         ret = 0;
         drm_drop_master(dev, file_priv);
 out_unlock: