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path: root/drivers/gpu/drm/drm_auth.c
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Diffstat (limited to 'drivers/gpu/drm/drm_auth.c')
-rw-r--r--drivers/gpu/drm/drm_auth.c6
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: