driver core: try parent numa_node at first before using default

in the device_add, we try to use use parent numa_node.
need to make sure pci root bus's bridge device numa_node is set.
then we could use device->numa_node direclty for all device.
and don't need to call pcibus_to_node().

Signed-off-by: Yinghai Lu <yinghai.lu@sun.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index a8efdaef1870..a40043bd3257 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -973,7 +973,6 @@ void pci_device_add(struct pci_dev *dev, struct pci_bus *bus)
         dev->dev.release = pci_release_dev;
         pci_dev_get(dev);
 
-        set_dev_node(&dev->dev, pcibus_to_node(bus));
         dev->dev.dma_mask = &dev->dma_mask;
         dev->dev.dma_parms = &dev->dma_parms;
         dev->dev.coherent_dma_mask = 0xffffffffull;
@@ -1128,6 +1127,9 @@ struct pci_bus * pci_create_bus(struct device *parent,
                 goto dev_reg_err;
         b->bridge = get_device(dev);
 
+        if (!parent)
+                set_dev_node(b->bridge, pcibus_to_node(b));
+
         b->dev.class = &pcibus_class;
         b->dev.parent = b->bridge;
         sprintf(b->dev.bus_id, "%04x:%02x", pci_domain_nr(b), bus);