_nv means new value, not old value!
Signed-off-by: Thomas Klausner <wiz@xxxxxxxxxx>
---
xf86atomic.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/xf86atomic.h b/xf86atomic.h
index d0f85fc..4e7691f 100644
--- a/xf86atomic.h
+++ b/xf86atomic.h
@@ -85,7 +85,7 @@ typedef struct { uint_t atomic; } atomic_t;
# define atomic_read(x) (int) ((x)->atomic)
# define atomic_set(x, val) ((x)->atomic = (uint_t)(val))
# define atomic_inc(x) (atomic_inc_uint (&(x)->atomic))
-# define atomic_dec_and_test(x) (atomic_dec_uint_nv(&(x)->atomic) == 1)
+# define atomic_dec_and_test(x) (atomic_dec_uint_nv(&(x)->atomic) == 0)
# define atomic_add(x, v) (atomic_add_int(&(x)->atomic, (v)))
# define atomic_dec(x, v) (atomic_add_int(&(x)->atomic, -(v)))
# define atomic_cmpxchg(x, oldv, newv) atomic_cas_uint (&(x)->atomic, oldv, newv)
--
1.9.4
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