[PATCH 5/9] PCI: iproc: Protect root bus removal with rescan lock

[Hans Zhang]

Hold pci_rescan_remove_global_lock during root bus stop and
removal in iproc_pcie_remove().

Signed-off-by: Hans Zhang <18255117159@xxxxxxx>
---
 drivers/pci/controller/pcie-iproc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/pci/controller/pcie-iproc.c b/drivers/pci/controller/pcie-iproc.c
index ccf71993ea35..c8f0a87cf28a 100644
--- a/drivers/pci/controller/pcie-iproc.c
+++ b/drivers/pci/controller/pcie-iproc.c
@@ -1529,8 +1529,10 @@ void iproc_pcie_remove(struct iproc_pcie *pcie)
 {
 	struct pci_host_bridge *host = pci_host_bridge_from_priv(pcie);
 
+	pci_lock_rescan_remove();
 	pci_stop_root_bus(host->bus);
 	pci_remove_root_bus(host->bus);
+	pci_unlock_rescan_remove();
 
 	iproc_pcie_msi_disable(pcie);
 
-- 
2.34.1