Merge branch 'pci/controller/rescan_lock'

- Protect root bus removal with rescan lock in altera, brcmstb, cadence,
  dwc, iproc, mediatek, plda, rockchip to prevent use-after-free or crashes
  when racing with sysfs rescan or hotplug (Hans Zhang)

* pci/controller/rescan_lock:
  PCI: rockchip: Protect root bus removal with rescan lock
  PCI: plda: Protect root bus removal with rescan lock
  PCI: mediatek: Protect root bus removal with rescan lock
  PCI: iproc: Protect root bus removal with rescan lock
  PCI: dwc: Protect root bus removal with rescan lock
  PCI: cadence: Protect root bus removal with rescan lock
  PCI: brcmstb: Protect root bus removal with rescan lock
  PCI: altera: Protect root bus removal with rescan lock

diff --cc drivers/pci/controller/cadence/pcie-cadence-host.c
Simple merge

diff --cc drivers/pci/controller/dwc/pcie-designware-host.c
Simple merge

diff --cc drivers/pci/controller/pcie-altera.c
Simple merge

diff --cc drivers/pci/controller/pcie-iproc.c
Simple merge

diff --cc drivers/pci/controller/pcie-mediatek.c
Simple merge