switch assorted clock drivers to debugfs_remove_recursive()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/arch/arm/mach-tegra/clock.c b/arch/arm/mach-tegra/clock.c
index e028320..f8d41ff 100644
--- a/arch/arm/mach-tegra/clock.c
+++ b/arch/arm/mach-tegra/clock.c
@@ -585,7 +585,7 @@
 
 static int clk_debugfs_register_one(struct clk *c)
 {
-	struct dentry *d, *child, *child_tmp;
+	struct dentry *d;
 
 	d = debugfs_create_dir(c->name, clk_debugfs_root);
 	if (!d)
@@ -614,10 +614,7 @@
 	return 0;
 
 err_out:
-	d = c->dent;
-	list_for_each_entry_safe(child, child_tmp, &d->d_subdirs, d_u.d_child)
-		debugfs_remove(child);
-	debugfs_remove(c->dent);
+	debugfs_remove_recursive(c->dent);
 	return -ENOMEM;
 }