CVE-2023-53754 scsi: lpfc: Fix ioremap issues in lpfc_sli4_pci_mem_setup()

In the Linux kernel, the following vulnerability has been resolved: scsi: lpfc: Fix ioremap issues in lpfcsli4pcimemsetup When iftype equals zero and pciresourcestartpdev, PCI64BITBAR4 returns false, drblregsmemmapp is not remapped. This passes a NULL pointer to iounmap, which can trigger a WARN ...