PERFORCE change 97554 for review

[John-Mark Gurney]

http://perforce.freebsd.org/chv.cgi?CH=97554

Change 97554 by jmg at jmg_carbon-60 on 2006/05/21 06:02:36

	use function to get the parent instead of knowing what a device_t	
	looks like...

Affected files ...

.. //depot/projects/kmacy_sun4v/src/sys/kern/subr_bus.c#5 edit

Differences ...

==== //depot/projects/kmacy_sun4v/src/sys/kern/subr_bus.c#5 (text+ko) ====

@@ -3624,10 +3624,12 @@
 bus_dma_tag_t
 bus_get_dma_tag(device_t dev)
 {
+	device_t parent;
 
-	if (dev->parent == NULL)
+	parent = device_get_parent(child);
+	if (parent == NULL)
 		return (NULL);
-	return (BUS_GET_DMA_TAG(dev->parent, dev));
+	return (BUS_GET_DMA_TAG(parent, dev));
 }
 
 /* Resume all devices and then notify userland that we're up again. */