diff --git a/drivers/xen/gntdev.c b/drivers/xen/gntdev.c
index 5447c5156b2e..b9651f797676 100644
--- a/drivers/xen/gntdev.c
+++ b/drivers/xen/gntdev.c
@@ -1005,8 +1005,10 @@ static int gntdev_mmap(struct file *flip, struct vm_area_struct *vma)
 		err = mmu_interval_notifier_insert_locked(
 			&map->notifier, vma->vm_mm, vma->vm_start,
 			vma->vm_end - vma->vm_start, &gntdev_mmu_ops);
-		if (err)
+		if (err) {
+			map->vma = NULL;
 			goto out_unlock_put;
+		}
 	}
 	mutex_unlock(&priv->lock);