PCI: Fix use-after-free in pci_bus_release_domain_nr()
This series resolves RHBZ 2184109 "Commit c14f7ccc9f5d ("PCI: Assign PCI
domain IDs by ida_alloc()") introduced a use-after-free bug in the bus
removal cleanup".
The patch back-ported cleanly.
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2184109
Depends: N/A
Testing: Testing by reporter, Joel Slebodnick, was successful.
Signed-off-by: Myron Stowe <mstowe@redhat.com>