The driver is well written to be used as a module, just the exit call
is missing.
Reviewed-by: NJean Delvare <jdelvare@suse.de>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>