nau8824_sema_acquire
nau8824_sema_acquire(nau8824, HZ);
nau8824_sema_acquire(nau8824, HZ);
nau8824_sema_acquire(nau8824, HZ);
nau8824_sema_acquire(nau8824, HZ);
nau8824_sema_acquire(nau8824, HZ);
nau8824_sema_acquire(nau8824, HZ);
ret = nau8824_sema_acquire(nau8824, 0);