of: Always use 'struct device.of_node' to get device node pointer.

The following structure elements duplicate the information in
'struct device.of_node' and so are being eliminated.  This patch
makes all readers of these elements use device.of_node instead.

(struct of_device *)->node
(struct dev_archdata *)->prom_node (sparc)
(struct dev_archdata *)->of_node (powerpc & microblaze)

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>

drivers/infiniband/hw/ehca/ehca_main.c

@@ -291,8 +291,9 @@ static int ehca_sense_attributes(struct ehca_shca *shca)
 	};
 
 	ehca_gen_dbg("Probing adapter %s...",
-		     shca->ofdev->node->full_name);
-	loc_code = of_get_property(shca->ofdev->node, "ibm,loc-code", NULL);
+		     shca->ofdev->dev.of_node->full_name);
+	loc_code = of_get_property(shca->ofdev->dev.of_node, "ibm,loc-code",
+				   NULL);
 	if (loc_code)
 		ehca_gen_dbg(" ... location lode=%s", loc_code);
 
@@ -720,16 +721,16 @@ static int __devinit ehca_probe(struct of_device *dev,
 	int ret, i, eq_size;
 	unsigned long flags;
 
-	handle = of_get_property(dev->node, "ibm,hca-handle", NULL);
+	handle = of_get_property(dev->dev.of_node, "ibm,hca-handle", NULL);
 	if (!handle) {
 		ehca_gen_err("Cannot get eHCA handle for adapter: %s.",
-			     dev->node->full_name);
+			     dev->dev.of_node->full_name);
 		return -ENODEV;
 	}
 
 	if (!(*handle)) {
 		ehca_gen_err("Wrong eHCA handle for adapter: %s.",
-			     dev->node->full_name);
+			     dev->dev.of_node->full_name);
 		return -ENODEV;
 	}