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

*** 33,44 ****
  /*
   * Solaris Multithreaded STREAMS Chelsio PCI Ethernet Driver.
   * Interface code
   */
  
- #pragma ident   "%Z%%M% %I%     %E% SMI"
- 
  #include <sys/types.h>
  #include <sys/systm.h>
  #include <sys/cmn_err.h>
  #include <sys/ddi.h>
  #include <sys/sunddi.h>
--- 33,42 ----
*** 1388,1398 ****
                  /*
                   * decrement count of receive buffers freed by callback
                   * We decrement here so anyone trying to do fini will
                   * only remove the driver once the counts go to 0.
                   */
!                 atomic_add_32(&buffers_in_use[i], -1);
  
                  return;
          }
  
          mutex_enter(&sa->ch_small_esbl);
--- 1386,1396 ----
                  /*
                   * decrement count of receive buffers freed by callback
                   * We decrement here so anyone trying to do fini will
                   * only remove the driver once the counts go to 0.
                   */
!                 atomic_dec_32(&buffers_in_use[i]);
  
                  return;
          }
  
          mutex_enter(&sa->ch_small_esbl);
*** 1401,1411 ****
          mutex_exit(&sa->ch_small_esbl);
  
          /*
           * decrement count of receive buffers freed by callback
           */
!         atomic_add_32(&buffers_in_use[rbp->cs_index], -1);
  }
  
  /*
   * callback function from freeb() when esballoced mblk freed.
   */
--- 1399,1409 ----
          mutex_exit(&sa->ch_small_esbl);
  
          /*
           * decrement count of receive buffers freed by callback
           */
!         atomic_dec_32(&buffers_in_use[rbp->cs_index]);
  }
  
  /*
   * callback function from freeb() when esballoced mblk freed.
   */
*** 1431,1441 ****
                  /*
                   * decrement count of receive buffers freed by callback
                   * We decrement here so anyone trying to do fini will
                   * only remove the driver once the counts go to 0.
                   */
!                 atomic_add_32(&buffers_in_use[i], -1);
  
                  return;
          }
  
          mutex_enter(&sa->ch_big_esbl);
--- 1429,1439 ----
                  /*
                   * decrement count of receive buffers freed by callback
                   * We decrement here so anyone trying to do fini will
                   * only remove the driver once the counts go to 0.
                   */
!                 atomic_dec_32(&buffers_in_use[i]);
  
                  return;
          }
  
          mutex_enter(&sa->ch_big_esbl);
*** 1444,1454 ****
          mutex_exit(&sa->ch_big_esbl);
  
          /*
           * decrement count of receive buffers freed by callback
           */
!         atomic_add_32(&buffers_in_use[rbp->cs_index], -1);
  }
  
  /*
   * get a pre-allocated, pre-mapped receive buffer from free list.
   * (used sge.c)
--- 1442,1452 ----
          mutex_exit(&sa->ch_big_esbl);
  
          /*
           * decrement count of receive buffers freed by callback
           */
!         atomic_dec_32(&buffers_in_use[rbp->cs_index]);
  }
  
  /*
   * get a pre-allocated, pre-mapped receive buffer from free list.
   * (used sge.c)