ovl: fix leaked dentry
This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.11.19 by commit cf3e3330bc5719fa9d658e3e2f596bde89344a94, it was introduced in version v5.8 by commit 6815f479ca90ee7fd2e28b2a420f796b974155fe. For more details please see the references link.