10080 smatch Makefile changes for usr/src/cmd

@@ -9,18 +9,22 @@
 # http://www.illumos.org/license/CDDL.
 #
 
 #
 # Copyright 2018 Toomas Soome <tsoome@me.com>
+# Copyright (c) 2019, Joyent, Inc.
 #
 
 PROG=   etdump
 OBJS=   etdump.o output_shell.o output_text.o cd9660_conversion.o
 SRCS=   $(OBJS:%.o=%.c)
 
 include ../Makefile.cmd
 
+# comes from FreeBSD upstream
+SMOFF += all_func_returns
+
 .KEEP_STATE:
 
 all: $(PROG)
 
 install: all $(ROOTPROG)