HV: hvballoon: fix memory leak with using debugfslookup()
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 v6.1.11 by commit 0b570a059cf42ad6e2eb632f47c23813d58d8303, it was introduced in version v6.0 by commit d180e0a1be6cea2b7436fadbd1c96aecdf3c46c7. For more details please see the references link.