Merge tag 'dt-for-3.6' of git://sources.calxeda.com/kernel/linux

Pull devicetree updates from Rob Herring:
 "A small set of changes for devicetree:
   - Couple of Documentation fixes
   - Addition of new helper function of_node_full_name
   - Improve of_parse_phandle_with_args return values
   - Some NULL related sparse fixes"

Grant's busy packing.

* tag 'dt-for-3.6' of git://sources.calxeda.com/kernel/linux:
  of: mtd: nuke useless const qualifier
  devicetree: add helper inline for retrieving a node's full name
  of: return -ENOENT when no property
  usage-model.txt: fix typo machine_init->init_machine
  of: Fix null pointer related warnings in base.c file
  LED: Fix missing semicolon in OF documentation
  of: fix a few typos in the binding documentation

4 files changed, 6 insertions, 10 deletions

diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index 0f75bd500404..edef9afd8858 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -248,8 +248,7 @@ static int pci_read_irq_line(struct pci_dev *pci_dev)
 	} else {
 		pr_debug(" Got one, spec %d cells (0x%08x 0x%08x...) on %s\n",
 			 oirq.size, oirq.specifier[0], oirq.specifier[1],
-			 oirq.controller ? oirq.controller->full_name :
-			 "<default>");
+			 of_node_full_name(oirq.controller));
 
 		virq = irq_create_of_mapping(oirq.controller, oirq.specifier,
 					     oirq.size);
@@ -1628,8 +1627,7 @@ void __devinit pcibios_scan_phb(struct pci_controller *hose)
 	struct device_node *node = hose->dn;
 	int mode;
 
-	pr_debug("PCI: Scanning PHB %s\n",
-		 node ? node->full_name : "<NO NAME>");
+	pr_debug("PCI: Scanning PHB %s\n", of_node_full_name(node));
 
 	/* Get some IO space for the new PHB */
 	pcibios_setup_phb_io_space(hose);
diff --git a/arch/powerpc/kernel/vio.c b/arch/powerpc/kernel/vio.c
index 7a421e8fe7ca..3052a931f2b5 100644
--- a/arch/powerpc/kernel/vio.c
+++ b/arch/powerpc/kernel/vio.c
@@ -1294,8 +1294,7 @@ static void __devinit vio_dev_release(struct device *dev)
 	struct iommu_table *tbl = get_iommu_table_base(dev);
 
 	if (tbl)
-		iommu_free_table(tbl, dev->of_node ?
-			dev->of_node->full_name : dev_name(dev));
+		iommu_free_table(tbl, of_node_full_name(dev->of_node));
 	of_node_put(dev->of_node);
 	kfree(to_vio_dev(dev));
 }
@@ -1519,7 +1518,7 @@ static ssize_t devspec_show(struct device *dev,
 {
 	struct device_node *of_node = dev->of_node;
 
-	return sprintf(buf, "%s\n", of_node ? of_node->full_name : "none");
+	return sprintf(buf, "%s\n", of_node_full_name(of_node));
 }
 
 static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c
index c264969c9319..dca213666747 100644
--- a/arch/powerpc/platforms/cell/iommu.c
+++ b/arch/powerpc/platforms/cell/iommu.c
@@ -551,8 +551,7 @@ static struct iommu_table *cell_get_iommu_table(struct device *dev)
 	iommu = cell_iommu_for_node(dev_to_node(dev));
 	if (iommu == NULL || list_empty(&iommu->windows)) {
 		printk(KERN_ERR "iommu: missing iommu for %s (node %d)\n",
-		       dev->of_node ? dev->of_node->full_name : "?",
-		       dev_to_node(dev));
+		       of_node_full_name(dev->of_node), dev_to_node(dev));
 		return NULL;
 	}
 	window = list_entry(iommu->windows.next, struct iommu_window, list);
diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c
index 07c09cbbfb19..bca220f2873c 100644
--- a/arch/powerpc/platforms/pseries/iommu.c
+++ b/arch/powerpc/platforms/pseries/iommu.c
@@ -1134,7 +1134,7 @@ static void pci_dma_dev_setup_pSeriesLP(struct pci_dev *dev)
 	if (!pdn || !PCI_DN(pdn)) {
 		printk(KERN_WARNING "pci_dma_dev_setup_pSeriesLP: "
 		       "no DMA window found for pci dev=%s dn=%s\n",
-				 pci_name(dev), dn? dn->full_name : "<null>");
+				 pci_name(dev), of_node_full_name(dn));
 		return;
 	}
 	pr_debug("  parent is %s\n", pdn->full_name);