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| author | Maarten Lankhorst <maarten.lankhorst@ubuntu.com> | 2015-02-26 11:54:02 +0100 |
|---|---|---|
| committer | Maarten Lankhorst <dev@mblankhorst.nl> | 2015-03-13 20:21:57 +0100 |
| commit | 7caa442e761ab5e48698c937aea9ce18f4522ecb (patch) | |
| tree | 83b7a81c99bb50dcbfbd0e1aadcaf548a5f7f8a1 | |
| parent | cd4685498b7926cf3fb39c6d0d25b2bc76c29f68 (diff) | |
Use __sync_add_and_fetch instead of __sync_fetch_and_add for atomic_dec_and_test
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@ubuntu.com>
Acked-By: Emil Velikov <emil.l.velikov@gmail.com>
| -rw-r--r-- | xf86atomic.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/xf86atomic.h b/xf86atomic.h index 17fb088d..194554ce 100644 --- a/xf86atomic.h +++ b/xf86atomic.h @@ -50,7 +50,7 @@ typedef struct { # define atomic_set(x, val) ((x)->atomic = (val)) # define atomic_inc(x) ((void) __sync_fetch_and_add (&(x)->atomic, 1)) # define atomic_inc_return(x) (__sync_add_and_fetch (&(x)->atomic, 1)) -# define atomic_dec_and_test(x) (__sync_fetch_and_add (&(x)->atomic, -1) == 1) +# define atomic_dec_and_test(x) (__sync_add_and_fetch (&(x)->atomic, -1) == 0) # define atomic_add(x, v) ((void) __sync_add_and_fetch(&(x)->atomic, (v))) # define atomic_dec(x, v) ((void) __sync_sub_and_fetch(&(x)->atomic, (v))) # define atomic_cmpxchg(x, oldv, newv) __sync_val_compare_and_swap (&(x)->atomic, oldv, newv) |