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

*** 4563,4583 ****
  }
  
  static void
  issue_cmd_xscale(struct megasas_cmd *cmd, struct megasas_instance *instance)
  {
!         atomic_add_16(&instance->fw_outstanding, 1);
  
          /* Issue the command to the FW */
          WR_IB_QPORT((host_to_le32(cmd->frame_phys_addr) >> 3) |
              (cmd->frame_count - 1), instance);
  }
  
  static void
  issue_cmd_ppc(struct megasas_cmd *cmd, struct megasas_instance *instance)
  {
!         atomic_add_16(&instance->fw_outstanding, 1);
  
          /* Issue the command to the FW */
          WR_IB_QPORT((host_to_le32(cmd->frame_phys_addr)) |
              (((cmd->frame_count - 1) << 1) | 1), instance);
  }
--- 4563,4583 ----
  }
  
  static void
  issue_cmd_xscale(struct megasas_cmd *cmd, struct megasas_instance *instance)
  {
!         atomic_inc_16(&instance->fw_outstanding);
  
          /* Issue the command to the FW */
          WR_IB_QPORT((host_to_le32(cmd->frame_phys_addr) >> 3) |
              (cmd->frame_count - 1), instance);
  }
  
  static void
  issue_cmd_ppc(struct megasas_cmd *cmd, struct megasas_instance *instance)
  {
!         atomic_inc_16(&instance->fw_outstanding);
  
          /* Issue the command to the FW */
          WR_IB_QPORT((host_to_le32(cmd->frame_phys_addr)) |
              (((cmd->frame_count - 1) << 1) | 1), instance);
  }