json: handle NULL explicitly in json_variant_has_type()

diff --git a/src/shared/json.c b/src/shared/json.c
index 01faf4037be54a770553fa1651cef05641970488..3786ff12b84648ada1cab7c7c158ba7156405c0e 100644 (file)
--- a/src/shared/json.c
+++ b/src/shared/json.c
@@ -979,6 +979,8 @@ bool json_variant_has_type(JsonVariant *v, JsonVariantType type) {
         JsonVariantType rt;
 
         v = json_variant_dereference(v);
+        if (!v)
+                return false;
 
         rt = json_variant_type(v);
         if (rt == type)