nfp: Fix memory leak in nfpcppareacacheadd()
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 v5.15.8 by commit f707820c09239d6f67699d9b2ff57863cc7905b0, it was introduced in version v4.11 by commit 4cb584e0ee7df70fd0376aee60cf701855ea8c81. For more details please see the references link.