json-parser: add handling for NULL token list
Currently a NULL token list will crash the parser, instead we have it
pass back a NULL QObject.
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
diff --git a/json-parser.c b/json-parser.c
index 58e973b..849e215 100644
--- a/json-parser.c
+++ b/json-parser.c
@@ -633,9 +633,13 @@
QObject *json_parser_parse_err(QList *tokens, va_list *ap, Error **errp)
{
JSONParserContext ctxt = {};
- QList *working = qlist_copy(tokens);
+ QList *working;
QObject *result;
+ if (!tokens) {
+ return NULL;
+ }
+ working = qlist_copy(tokens);
result = parse_value(&ctxt, &working, ap);
QDECREF(working);