diff options
Diffstat (limited to 'drivers/pci/hotplug/pciehp_pci.c')
| -rw-r--r-- | drivers/pci/hotplug/pciehp_pci.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/drivers/pci/hotplug/pciehp_pci.c b/drivers/pci/hotplug/pciehp_pci.c index 198355112ee7..b07d7cc2d697 100644 --- a/drivers/pci/hotplug/pciehp_pci.c +++ b/drivers/pci/hotplug/pciehp_pci.c @@ -39,22 +39,26 @@ int pciehp_configure_device(struct slot *p_slot) struct pci_dev *dev; struct pci_dev *bridge = p_slot->ctrl->pcie->port; struct pci_bus *parent = bridge->subordinate; - int num; + int num, ret = 0; struct controller *ctrl = p_slot->ctrl; + pci_lock_rescan_remove(); + dev = pci_get_slot(parent, PCI_DEVFN(0, 0)); if (dev) { ctrl_err(ctrl, "Device %s already exists " "at %04x:%02x:00, cannot hot-add\n", pci_name(dev), pci_domain_nr(parent), parent->number); pci_dev_put(dev); - return -EINVAL; + ret = -EINVAL; + goto out; } num = pci_scan_slot(parent, PCI_DEVFN(0, 0)); if (num == 0) { ctrl_err(ctrl, "No new device found\n"); - return -ENODEV; + ret = -ENODEV; + goto out; } list_for_each_entry(dev, &parent->devices, bus_list) @@ -73,7 +77,9 @@ int pciehp_configure_device(struct slot *p_slot) pci_bus_add_devices(parent); - return 0; + out: + pci_unlock_rescan_remove(); + return ret; } int pciehp_unconfigure_device(struct slot *p_slot) @@ -90,6 +96,8 @@ int pciehp_unconfigure_device(struct slot *p_slot) __func__, pci_domain_nr(parent), parent->number); pciehp_get_adapter_status(p_slot, &presence); + pci_lock_rescan_remove(); + /* * Stopping an SR-IOV PF device removes all the associated VFs, * which will update the bus->devices list and confuse the @@ -124,5 +132,6 @@ int pciehp_unconfigure_device(struct slot *p_slot) pci_dev_put(dev); } + pci_unlock_rescan_remove(); return rc; } |