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ACPI: pci_root: use driver data rather than list lookup 

There's no need to search the list to find the acpi_pci_root
structure.  We saved it as device->driver_data when we added
the device.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Bjorn Helgaas 2009-06-18 14:46:57 -06:00 committed by Len Brown
parent f5eebbe119
commit caf420c68a
1 changed files with 4 additions and 17 deletions
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21
drivers/acpi/pci_root.c
View File

@ -497,30 +497,17 @@ end:
static int acpi_pci_root_start(struct acpi_device *device)
{
struct acpi_pci_root *root;
struct acpi_pci_root *root = acpi_driver_data(device);
list_for_each_entry(root, &acpi_pci_roots, node) {
if (root->device == device) {
pci_bus_add_devices(root->bus);
return 0;
}
}
return -ENODEV;
pci_bus_add_devices(root->bus);
return 0;
}
static int acpi_pci_root_remove(struct acpi_device *device, int type)
{
struct acpi_pci_root *root = NULL;
if (!device || !acpi_driver_data(device))
return -EINVAL;
root = acpi_driver_data(device);
struct acpi_pci_root *root = acpi_driver_data(device);
kfree(root);
return 0;
}