Make sure return value is initialised in case transaction startup fails

Author: johannes

ext/mysqlnd/mysqlnd.c

@@ -1061,7 +1061,7 @@ static enum_func_status
 MYSQLND_METHOD(mysqlnd_conn_data, send_query)(MYSQLND_CONN_DATA * conn, const char * query, unsigned int query_len TSRMLS_DC)
 {
 	size_t this_func = STRUCT_OFFSET(struct st_mysqlnd_conn_data_methods, send_query);
-	enum_func_status ret;
+	enum_func_status ret = FAIL;
 	DBG_ENTER("mysqlnd_conn_data::send_query");
 	DBG_INF_FMT("conn=%llu query=%s", conn->thread_id, query);
 
@@ -1468,7 +1468,7 @@ static ulong
 MYSQLND_METHOD(mysqlnd_conn_data, escape_string)(MYSQLND_CONN_DATA * const conn, char * newstr, const char * escapestr, size_t escapestr_len TSRMLS_DC)
 {
 	size_t this_func = STRUCT_OFFSET(struct st_mysqlnd_conn_data_methods, escape_string);
-	ulong ret;
+	ulong ret = FAIL;
 	DBG_ENTER("mysqlnd_conn_data::escape_string");
 	DBG_INF_FMT("conn=%llu", conn->thread_id);