fs/openpromfs: use full_name instead of path_component_name

In preparation to remove struct device_node.path_component_name, use
full_name instead. kbasename is used so full_name can be used whether it
is the full path or just the node's name and unit-address.

Cc: "David S. Miller" <davem@davemloft.net>
Cc: sparclinux@vger.kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

fs/openpromfs/inode.c

@@ -199,10 +199,11 @@ static struct dentry *openpromfs_lookup(struct inode *dir, struct dentry *dentry
 
 	child = dp->child;
 	while (child) {
-		int n = strlen(child->path_component_name);
+		const char *node_name = kbasename(child->full_name);
+		int n = strlen(node_name);
 
 		if (len == n &&
-		    !strncmp(child->path_component_name, name, len)) {
+		    !strncmp(node_name, name, len)) {
 			ent_type = op_inode_node;
 			ent_data.node = child;
 			ino = child->unique_id;
@@ -293,8 +294,8 @@ static int openpromfs_readdir(struct file *file, struct dir_context *ctx)
 	}
 	while (child) {
 		if (!dir_emit(ctx,
-			    child->path_component_name,
-			    strlen(child->path_component_name),
+			    kbasename(child->full_name),
+			    strlen(kbasename(child->full_name)),
 			    child->unique_id, DT_DIR))
 			goto out;