10077 usr/src/uts/ Makefile changes for smatch

*** 20,30 ****
  #
  #
  # Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
  # Use is subject to license terms.
  #
! # uts/intel/usbser/Makefile
  
  
  #
  #       This makefile drives the production of the usbser kernel module.
  #
--- 20,30 ----
  #
  #
  # Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
  # Use is subject to license terms.
  #
! # Copyright (c) 2018, Joyent, Inc.
  
  
  #
  #       This makefile drives the production of the usbser kernel module.
  #
*** 63,72 ****
--- 63,75 ----
  # to investigate and remove these for maximum lint coverage.
  # Please do not carry these forward to new Makefiles.
  #
  LINTTAGS        += -erroff=E_BAD_PTR_CAST_ALIGN
  
+ # needs work
+ SMOFF += all_func_returns
+ 
  .KEEP_STATE:
  
  all:            $(ALL_DEPS)
  
  def:            $(DEF_DEPS)