iommu/mediatek: Fix NULL pointer dereference when printing dev_name
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 v5.15.46 by commit c3c2734e28d7fac50228c4d2b8896e8695adf304, it was introduced in version v5.15.33 by commit 77fbe028d5a3f7fc6060c4454ead9510533acd1e. For more details please see the references link.