On Mon, Sep 16, 2024 at 02:58:43PM -0700, Daniel Yang wrote: > In exfat_create_upcase_table, ENOMEM and EINVAL result in a jump to > exfat_load_default_upcase_table where memory is also allocated. Since > ENOMEM doesn't allocate memory, freeing null addresses will result in a > double free. Freeing null address is a no-op. Explicitly guaranteed, for the same reason why C standard guarantees that free(NULL) is a no-op. So you don't need to check if allocation had been done.
