HID: hidraw -- fix missing unlocks in unlocked_ioctl

There were 2 places that returned directly instead of releasing their
locks.  I sent a fix for this file earlier but ended up missing these
spots.  I think what happened is that I have improved my checker script
since then...  Or maybe I just screwed up.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>