linux-imx

staging: ccree: Remove a attribute group from a kobject

All attribute group created during sys_init_dir() should be removed
in sys_free_dir()

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>