10077 usr/src/uts/ Makefile changes for smatch

*** 20,30 ****
--- 20,32 ----
  #
  
  #
  # Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
  #
+ # Copyright (c) 2018, Joyent, Inc.
  
+ 
  #
  # uts/intel/sda/Makefile
  #
  #       This makefile drives the production of the sda "misc"
  #       kernel module.
*** 74,83 ****
--- 76,88 ----
  #
  MAPFILE         = $(UTSBASE)/common/io/sdcard/impl/mapfile
  LDFLAGS         += -dy -Ndrv/blkdev -B reduce -M $(MAPFILE)
  CTFMRGFLAGS     += -f
  
+ # needs work
+ SMOFF += all_func_returns
+ 
  #
  #       Default build targets.
  #
  .KEEP_STATE: