diff options
| author | Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> | 2009-11-25 15:03:27 +0300 |
|---|---|---|
| committer | Jesse Barnes <jbarnes@virtuousgeek.org> | 2009-12-05 02:55:44 +0300 |
| commit | d013598d9a46befebdfd37195829ce411e4878ea (patch) | |
| tree | 92d461ff66a29cbf9b23af2570de4a99ad9a16c6 /drivers/pci | |
| parent | 9e5d0b16dada536dfe2f1e893b6ad0225ff8a2c9 (diff) | |
| download | linux-d013598d9a46befebdfd37195829ce411e4878ea.tar.xz | |
PCI: portdrv: check capabilities first
Move capability check capability to the beginning of
pcie_port_device_register() prevents redundant execution path.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/pcie/portdrv_core.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/pci/pcie/portdrv_core.c b/drivers/pci/pcie/portdrv_core.c index 079bbc3ed4f8..52c4e6fd6fd4 100644 --- a/drivers/pci/pcie/portdrv_core.c +++ b/drivers/pci/pcie/portdrv_core.c @@ -297,6 +297,10 @@ int pcie_port_device_register(struct pci_dev *dev) int status, capabilities, irq_mode, i, nr_serv; int vectors[PCIE_PORT_DEVICE_MAXSERVICES]; + capabilities = get_port_device_capability(dev); + if (!capabilities) + return -ENODEV; + port_data = kzalloc(sizeof(*port_data), GFP_KERNEL); if (!port_data) return -ENOMEM; @@ -304,8 +308,6 @@ int pcie_port_device_register(struct pci_dev *dev) port_data->port_type = dev->pcie_type; - capabilities = get_port_device_capability(dev); - irq_mode = assign_interrupt_mode(dev, vectors, capabilities); if (irq_mode == PCIE_PORT_NO_IRQ) { /* |