10079 smatch Makefile changes for usr/src/lib

@@ -20,10 +20,11 @@
 #
 
 #
 # Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
 #
+# Copyright (c) 2018, Joyent, Inc.
 
 SRCS = $(OBJECTS:%.o=../common/%.c)
 CSTD = $(CSTD_GNU99)
 CPPFLAGS += -I../common -I. -D_REENTRANT
 $(NOT_RELEASE_BUILD)CPPFLAGS += -DDEBUG

@@ -31,10 +32,12 @@
 
 CERRWARN += -_gcc=-Wno-type-limits
 CERRWARN += -_gcc=-Wno-uninitialized
 CERRWARN += -_gcc=-Wno-unused-label
 
+SMOFF += all_func_returns
+
 ROOTLIBDIR = $(ROOTSCSILIBDIR)
 ROOTLIBDIR64 = $(ROOTSCSILIBDIR)/$(MACH64)
 
 DYNFLAGS32 += -R$(SCSILIBDIR)
 DYNFLAGS64 += -R$(SCSILIBDIR)/$(MACH64)