fix leak appearing on phpinfo() when there are no PDO modules available

diff --git a/ext/pdo/pdo.c b/ext/pdo/pdo.c
index 99f658378c11bad829f8c2964d213583d2c870f3..eb56dd6ee4b5a0af0cc3f234fd7934d48fefb891 100755 (executable)
--- a/ext/pdo/pdo.c
+++ b/ext/pdo/pdo.c
@@ -391,6 +391,8 @@ PHP_MINFO_FUNCTION(pdo)
 
        if (drivers) {
                efree(drivers);
+       } else {
+               efree(ldrivers);
        }
 
        php_info_print_table_end();