10079 smatch Makefile changes for usr/src/lib

*** 20,33 ****
  #
  #
  # Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
  # Use is subject to license terms.
  #
- 
- #
  # Copyright (c) 2015 by Delphix. All rights reserved.
  #
  
  LIBRARY= libzfs_jni.a
  VERS= .1
  
  OBJECTS=        libzfs_jni_dataset.o \
--- 20,33 ----
  #
  #
  # Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
  # Use is subject to license terms.
  #
  # Copyright (c) 2015 by Delphix. All rights reserved.
  #
+ # Copyright (c) 2018, Joyent, Inc.
+ #
  
  LIBRARY= libzfs_jni.a
  VERS= .1
  
  OBJECTS=        libzfs_jni_dataset.o \
*** 48,57 ****
--- 48,59 ----
  LDLIBS +=       -lc -lnvpair -ldiskmgt -lzfs
  CPPFLAGS +=     $(INCS)
  $(NOT_RELEASE_BUILD) CPPFLAGS += -DDEBUG
  CERRWARN +=     -_gcc=-Wno-switch
  
+ SMOFF += all_func_returns
+ 
  SRCDIR =        ../common
  $(LINTLIB) := SRCS=     $(SRCDIR)/$(LINTSRC)
  
  .KEEP_STATE: