diff options
Diffstat (limited to 'drivers/pci/hotplug/sgi_hotplug.c')
| -rw-r--r-- | drivers/pci/hotplug/sgi_hotplug.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/pci/hotplug/sgi_hotplug.c b/drivers/pci/hotplug/sgi_hotplug.c index ae606b3e991e..574421bc2fa6 100644 --- a/drivers/pci/hotplug/sgi_hotplug.c +++ b/drivers/pci/hotplug/sgi_hotplug.c @@ -425,6 +425,7 @@ static int enable_slot(struct hotplug_slot *bss_hotplug_slot) pdevice = NULL; } + acpi_scan_lock_acquire(); /* * Walk the rootbus node's immediate children looking for * the slot's device node(s). There can be more than @@ -458,6 +459,7 @@ static int enable_slot(struct hotplug_slot *bss_hotplug_slot) } } } + acpi_scan_lock_release(); } /* Call the driver for the new device */ @@ -508,6 +510,7 @@ static int disable_slot(struct hotplug_slot *bss_hotplug_slot) /* Get the rootbus node pointer */ phandle = PCI_CONTROLLER(slot->pci_bus)->acpi_handle; + acpi_scan_lock_acquire(); /* * Walk the rootbus node's immediate children looking for * the slot's device node(s). There can be more than @@ -538,7 +541,7 @@ static int disable_slot(struct hotplug_slot *bss_hotplug_slot) acpi_bus_trim(device); } } - + acpi_scan_lock_release(); } /* Free the SN resources assigned to the Linux device.*/ |