scsi: qedf: Add pointer checks in qedfupdatelink_speed()
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 v5.12.7 by commit 11014efcec378bb0050a6cf08eaf375e3693400a, it was introduced in version v4.11 by commit 61d8658b4a435eac729966cc94cdda077a8df5cd. For more details please see the references link.