CVE-2024-56689 PCI: endpoint: epf-mhi: Avoid NULL dereference if DT lacks 'mmio'

In the Linux kernel, the following vulnerability has been resolved: PCI: endpoint: epf-mhi: Avoid NULL dereference if DT lacks 'mmio' If platformgetresourcebyname fails and returns NULL because DT lacks an 'mmio' property for the MHI endpoint, dereferencing res-start will cause a NULL pointer...