iommu/arm-smmu: fix possible null-ptr-deref in armsmmudevice_probe()
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 v5.18.4 by commit 449fc4561762ad9ad85362d5f01f0d0df397457a. For more details please see the references link.