MIPS: pgalloc: fix memory leak caused by pgd_free()
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 v5.15.33 by commit d29cda15cab086d82d692de016f7249545d4b6b4, it was introduced in version v5.9 by commit f9cb654cb550b7b87e8608b14fc3eca432429ffe. For more details please see the references link.