[SPARC]: Fix bus_id[] string overflow.

dp->path_component_name can be larger than ->bus_id[]
so use a different naming scheme for this stuff.

Noticed by Jurij Smakov.

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc64/kernel/ebus.c b/arch/sparc64/kernel/ebus.c
index 2df25c2..35bf895 100644
--- a/arch/sparc64/kernel/ebus.c
+++ b/arch/sparc64/kernel/ebus.c
@@ -389,12 +389,12 @@
 	dev->ofdev.node = dp;
 	dev->ofdev.dev.parent = &dev->bus->ofdev.dev;
 	dev->ofdev.dev.bus = &ebus_bus_type;
-	strcpy(dev->ofdev.dev.bus_id, dp->path_component_name);
+	sprintf(dev->ofdev.dev.bus_id, "ebus[%08x]", dp->node);
 
 	/* Register with core */
 	if (of_device_register(&dev->ofdev) != 0)
 		printk(KERN_DEBUG "ebus: device registration error for %s!\n",
-		       dev->ofdev.dev.bus_id);
+		       dp->path_component_name);
 
 	dp = dp->child;
 	if (dp) {
@@ -494,12 +494,12 @@
 		ebus->ofdev.node = dp;
 		ebus->ofdev.dev.parent = &pdev->dev;
 		ebus->ofdev.dev.bus = &ebus_bus_type;
-		strcpy(ebus->ofdev.dev.bus_id, dp->path_component_name);
+		sprintf(ebus->ofdev.dev.bus_id, "ebus%d", num_ebus);
 
 		/* Register with core */
 		if (of_device_register(&ebus->ofdev) != 0)
 			printk(KERN_DEBUG "ebus: device registration error for %s!\n",
-			       ebus->ofdev.dev.bus_id);
+			       dp->path_component_name);
 
 
 		child = dp->child;