end_req
backing_req->end_req = opts->end_fn;
backing_req->end_req = opts->end_fn;
if (backing_req->end_req)
backing_req->end_req(backing_req, backing_req->ret);
backing_req_end_fn_t end_req;
kref_put(&pcache_req->ref, end_req);
unsigned int i, tmp, start_req, end_req;
end_req = SPEAKER_TUNING_REAR_RIGHT_VOL_LEVEL;
for (i = start_req; i < end_req + 1; i++)
end_req = SPEAKER_TUNING_REAR_RIGHT_INVERT;
for (i = start_req; i < end_req + 1; i++)