f2fs: fix incorrect return value in f2fssanitycheck_ckpt()
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 v5.15.5 by commit 680a0c6332c48df1b900b3c535e920e7cc453b7e, it was introduced in version v5.15 by commit 65ddf6564843890a58ee3b18bb46ce67d96333fb. For more details please see the references link.