switch assorted clock drivers to debugfs_remove_recursive()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/drivers/sh/clk/core.c b/drivers/sh/clk/core.c
index 7e9c399..d6702e5 100644
--- a/drivers/sh/clk/core.c
+++ b/drivers/sh/clk/core.c
@@ -670,7 +670,7 @@
 static int clk_debugfs_register_one(struct clk *c)
 {
 	int err;
-	struct dentry *d, *child, *child_tmp;
+	struct dentry *d;
 	struct clk *pa = c->parent;
 	char s[255];
 	char *p = s;
@@ -699,10 +699,7 @@
 	return 0;
 
 err_out:
-	d = c->dentry;
-	list_for_each_entry_safe(child, child_tmp, &d->d_subdirs, d_u.d_child)
-		debugfs_remove(child);
-	debugfs_remove(c->dentry);
+	debugfs_remove_recursive(c->dentry);
 	return err;
 }