5045 use atomic_{inc,dec}_* instead of atomic_add_*

@@ -394,22 +394,22 @@
  * If a component has a reference to a kcf_policy_desc_t,
  * it REFHOLD()s. A new policy descriptor which is referenced only
  * by the policy table has a reference count of one.
  */
 #define KCF_POLICY_REFHOLD(desc) {              \
-        atomic_add_32(&(desc)->pd_refcnt, 1);   \
+        atomic_inc_32(&(desc)->pd_refcnt);      \
         ASSERT((desc)->pd_refcnt != 0);         \
 }
 
 /*
  * Releases a reference to a policy descriptor. When the last
  * reference is released, the descriptor is freed.
  */
 #define KCF_POLICY_REFRELE(desc) {                              \
         ASSERT((desc)->pd_refcnt != 0);                         \
         membar_exit();                                          \
-        if (atomic_add_32_nv(&(desc)->pd_refcnt, -1) == 0)      \
+        if (atomic_dec_32_nv(&(desc)->pd_refcnt) == 0)  \
                 kcf_policy_free_desc(desc);                     \
 }
 
 /*
  * This entry stores the name of a software module and its