Removed useless zval_ptr_dtor(return_value)

Author: dstogov

ext/filter/filter.c

@@ -676,11 +676,9 @@ static void php_filter_array_handler(zval *input, zval *op, zval *return_value,
 	zval *tmp, *arg_elm;
 
 	if (!op) {
-		zval_ptr_dtor(return_value);
 		ZVAL_DUP(return_value, input);
 		php_filter_call(return_value, FILTER_DEFAULT, NULL, 0, FILTER_REQUIRE_ARRAY);
 	} else if (Z_TYPE_P(op) == IS_LONG) {
-		zval_ptr_dtor(return_value);
 		ZVAL_DUP(return_value, input);
 		php_filter_call(return_value, Z_LVAL_P(op), NULL, 0, FILTER_REQUIRE_ARRAY);
 	} else if (Z_TYPE_P(op) == IS_ARRAY) {

ext/imap/php_imap.c

@@ -3353,13 +3353,13 @@ PHP_FUNCTION(imap_bodystruct)
 		RETURN_FALSE;
 	}
 
-	object_init(return_value);
 
 	body=mail_body(imap_le_struct->imap_stream, msg, (unsigned char*)ZSTR_VAL(section));
 	if (body == NULL) {
-		zval_ptr_dtor(return_value);
 		RETURN_FALSE;
 	}
+
+	object_init(return_value);
 	if (body->type <= TYPEMAX) {
 		add_property_long(return_value, "type", body->type);
 	}

ext/spl/spl_directory.c

@@ -2129,7 +2129,6 @@ static int spl_filesystem_file_read_csv(spl_filesystem_object *intern, char deli
 
 		php_fgetcsv(intern->u.file.stream, delimiter, enclosure, escape, buf_len, buf, &intern->u.file.current_zval);
 		if (return_value) {
-			zval_ptr_dtor(return_value);
 			value = &intern->u.file.current_zval;
 			ZVAL_COPY_DEREF(return_value, value);
 		}