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| author | Bjorn Helgaas <bjorn.helgaas@hp.com> | 2009-06-18 14:46:57 -0600 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2009-06-20 00:01:53 -0400 |
| commit | caf420c68afe01acd7c458ce40b85b3db5330ff5 (patch) | |
| tree | 28463c5028597e94ca6cae2af914468ff687a72d | |
| parent | f5eebbe119a861b5e4f5c67c886eab0937c686ed (diff) | |
| download | lwn-caf420c68afe01acd7c458ce40b85b3db5330ff5.tar.gz lwn-caf420c68afe01acd7c458ce40b85b3db5330ff5.zip | |
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>
| -rw-r--r-- | drivers/acpi/pci_root.c | 21 |
1 files changed, 4 insertions, 17 deletions
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c index 0d69c0348c58..7984e00540fa 100644 --- a/drivers/acpi/pci_root.c +++ b/drivers/acpi/pci_root.c @@ -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; } |