kobjects: fix up improper use of the kobject name field

A number of different drivers incorrect access the kobject name field
directly.  This is not correct as the name might not be in the array.
Use the proper accessor function instead.

diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c
index 83e76b3..ea33b66 100644
--- a/fs/sysfs/dir.c
+++ b/fs/sysfs/dir.c
@@ -1013,7 +1013,7 @@
 		goto again;
 	}
 
-	new_dentry = lookup_one_len(kobj->name, new_parent, strlen(kobj->name));
+	new_dentry = lookup_one_len(kobject_name(kobj), new_parent, strlen(kobject_name(kobj)));
 	if (IS_ERR(new_dentry)) {
 		error = PTR_ERR(new_dentry);
 		goto out_unlock;