octeontx2-af: Fix possible null pointer dereference.
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 by commit c2d4c543f74c90f883e8ec62a31973ae8807d354, it was introduced in version v5.5 by commit 8756828a81485f7b28b588adbf0bac9bf6fc6651. For more details please see the references link.