[PATCH 3/4] ide: use dev_to_node instead of pcibus_to_node

[Yinghai Lu <Yinghai.Lu@Sun.COM>]

when node0 doesn't have RAM, could have problem because pcibus_to_node may
return 0. So use update dev_to_node to get online node.

Signed-off-by: Yinghai Lu <yinghai.lu@sun.com>

Index: linux-2.6/include/linux/ide.h
===================================================================
--- linux-2.6.orig/include/linux/ide.h
+++ linux-2.6/include/linux/ide.h
@@ -1294,8 +1294,7 @@ static inline void ide_dump_identify(u8 
 
 static inline int hwif_to_node(ide_hwif_t *hwif)
 {
-	struct pci_dev *dev = to_pci_dev(hwif->dev);
-	return hwif->dev ? pcibus_to_node(dev->bus) : -1;
+	return hwif->dev ? dev_to_node(hwif->dev) : -1;
 }
 
 static inline ide_drive_t *ide_get_paired_drive(ide_drive_t *drive)