hotplug: safely iterate bus's sibling list while removing a device Without this, I'm seeing a segfault when unpluging a NIC. Cc: Gerd Hoffmann <kraxel@redhat.com> Patchworks-ID: 35519 Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>