Searched refs:map_guard (Results 1 - 2 of 2) sorted by path

/linux-master/drivers/tty/serial/
H A Ddz.c78 atomic_t map_guard; member in struct:dz_mux
665 int map_guard; local
670 map_guard = atomic_add_return(-1, &mux->map_guard);
671 if (!map_guard)
690 int map_guard; local
693 map_guard = atomic_add_return(1, &mux->map_guard);
694 if (map_guard == 1) {
697 atomic_add(-1, &mux->map_guard);
[all...]
H A Dsb1250-duart.c97 refcount_t map_guard; member in struct:sbd_duart
654 if(refcount_dec_and_test(&duart->map_guard))
697 refcount_inc(&duart->map_guard);
698 if (refcount_read(&duart->map_guard) == 1) {
701 refcount_dec(&duart->map_guard);
709 if (refcount_dec_and_test(&duart->map_guard))

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