CVE-2021-47516 nfp: Fix memory leak in nfp_cpp_area_cache_add()

In the Linux kernel, the following vulnerability has been resolved: nfp: Fix memory leak in nfpcppareacacheadd In line 800 1, nfpcppareaalloc allocates and initializes a CPP area structure. But in line 807 2, when the cache is allocated failed, this CPP area structure is not freed, which will...