[PATCH v5 09/12] libxl: ocaml: add some missing CAML macros

[Rob Hoes <rob.hoes@citrix.com>]

Signed-off-by: Rob Hoes <rob.hoes@citrix.com>
CC: Ian Campbell <ian.campbell@citrix.com>
CC: Ian Jackson <ian.jackson@eu.citrix.com>
CC: Dave Scott <dave.scott@eu.citrix.com>
---
 tools/ocaml/libs/xl/xenlight_stubs.c |    7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/tools/ocaml/libs/xl/xenlight_stubs.c b/tools/ocaml/libs/xl/xenlight_stubs.c
index 01ba3fe..7012045 100644
--- a/tools/ocaml/libs/xl/xenlight_stubs.c
+++ b/tools/ocaml/libs/xl/xenlight_stubs.c
@@ -58,6 +58,7 @@ static value Val_error (libxl_error error_c);
 
 static void failwith_xl(int error, char *fname)
 {
+	CAMLparam0();
 	CAMLlocal1(arg);
 	static value *exc = NULL;
 
@@ -74,6 +75,7 @@ static void failwith_xl(int error, char *fname)
 	Store_field(arg, 1, caml_copy_string(fname));
 
 	caml_raise_with_arg(*exc, arg);
+	CAMLreturn0;
 }
 
 CAMLprim value stub_raise_exception(value unit)
@@ -337,7 +339,7 @@ static libxl_defbool Defbool_val(value v)
 		bool b = Bool_val(Some_val(v));
 		libxl_defbool_set(&db, b);
 	}
-	return db;
+	CAMLreturnT(libxl_defbool, db);
 }
 
 static value Val_hwcap(libxl_hwcap *c_val)
@@ -368,10 +370,11 @@ static value Val_string_option(const char *c_val)
 
 static char *String_option_val(value v)
 {
+	CAMLparam1(v);
 	char *s = NULL;
 	if (v != Val_none)
 		s = dup_String_val(Some_val(v));
-	return s;
+	CAMLreturnT(char *, s);
 }
 
 #include "_libxl_types.inc"
-- 
1.7.10.4