arm: don't create useless copies to pass into debugfs_create_dir()

its first argument is const char * and it's really not modified...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/arch/arm/plat-omap/clock.c b/arch/arm/plat-omap/clock.c
index 43bae2c..964704f 100644
--- a/arch/arm/plat-omap/clock.c
+++ b/arch/arm/plat-omap/clock.c
@@ -482,11 +482,8 @@
 	int err;
 	struct dentry *d;
 	struct clk *pa = c->parent;
-	char s[255];
-	char *p = s;
 
-	p += sprintf(p, "%s", c->name);
-	d = debugfs_create_dir(s, pa ? pa->dent : clk_debugfs_root);
+	d = debugfs_create_dir(c->name, pa ? pa->dent : clk_debugfs_root);
 	if (!d)
 		return -ENOMEM;
 	c->dent = d;
@@ -509,7 +506,6 @@
 	return 0;
 
 err_out:
-	d = c->dent;
 	debugfs_remove_recursive(c->dent);
 	return err;
 }