of/pci: Fix pci_get_host_bridge_device leak

In case of error, the current code return w/o calling
pci_put_host_bridge_device. This patch fixes this.
Signed-off-by: NSuravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
Acked-by: NBjorn Helgaas <bhelgaas@google.com>
Reviewed-by: NHanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

drivers/of/of_pci.c

@@ -129,10 +129,9 @@ void of_pci_dma_configure(struct pci_dev *pci_dev)
 	struct device *dev = &pci_dev->dev;
 	struct device *bridge = pci_get_host_bridge_device(pci_dev);
 
-	if (!bridge->parent)
-		return;
+	if (bridge->parent)
+		of_dma_configure(dev, bridge->parent->of_node);
 
-	of_dma_configure(dev, bridge->parent->of_node);
 	pci_put_host_bridge_device(bridge);
 }
 EXPORT_SYMBOL_GPL(of_pci_dma_configure);