mqtt: plug leak on error path

diff --git a/src/mqtt.c b/src/mqtt.c
index 7003fcc..c7581e9 100644 (file)
--- a/src/mqtt.c
+++ b/src/mqtt.c
@@ -221,6 +221,7 @@ static void on_message (
     if (payload == NULL)
     {
         ERROR ("mqtt plugin: malloc for payload buffer failed.");
+        sfree (vl.values);
         return;
     }
     memmove (payload, msg->payload, msg->payloadlen);