ALSA: dice: clear device lock when closing hwdep device
ALSA: dice: clear device lock when closing hwdep device

Ensure that misbehaving or aborted userspace programs do not
accidentally keep the lock.

Signed-off-by: Clemens Ladisch <9f57ef5ff1095f40b1ee8b7caa363908baef59d7@ladisch.de>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs