4.12-stable review patch. If anyone has any objections, please let me know.
------------------
From: Jon Derrick <jonathan.derrick@xxxxxxxxx>
commit 0cb259c47a4df466d641c1f07ae3eccaa9ba3ccb upstream.
Recent __call_srcu() changes have exposed that we need to cleanup SRCU
structures after pci_stop_root_bus() calls into vmd_msi_free().
Fixes: 3906b91844d6 ("PCI: vmd: Use SRCU as a local RCU to prevent delaying global RCU")
Signed-off-by: Jon Derrick <jonathan.derrick@xxxxxxxxx>
Signed-off-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
Acked-by: Keith Busch <keith.busch@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/pci/host/vmd.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/pci/host/vmd.c
+++ b/drivers/pci/host/vmd.c
@@ -733,10 +733,10 @@ static void vmd_remove(struct pci_dev *d
struct vmd_dev *vmd = pci_get_drvdata(dev);
vmd_detach_resources(vmd);
- vmd_cleanup_srcu(vmd);
sysfs_remove_link(&vmd->dev->dev.kobj, "domain");
pci_stop_root_bus(vmd->bus);
pci_remove_root_bus(vmd->bus);
+ vmd_cleanup_srcu(vmd);
vmd_teardown_dma_ops(vmd);
irq_domain_remove(vmd->irq_domain);
}