From 1b83d1251edbfb49feb84c0c32d241a63e2118a9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C3=86var=20Arnfj=C3=B6r=C3=B0=20Bjarmason?=
 <avarab@gmail.com>
Date: Thu, 15 Jun 2017 23:15:47 +0000
Subject: coccinelle: add a rule to make "expression" code use FREE_AND_NULL()
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A follow-up to the existing "type" rule added in an earlier
change. This catches some occurrences that are missed by the previous
rule.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/contrib/coccinelle/free.cocci b/contrib/coccinelle/free.cocci
index 35fb992..f2d97e7 100644
--- a/contrib/coccinelle/free.cocci
+++ b/contrib/coccinelle/free.cocci
@@ -17,3 +17,10 @@ T *ptr;
 - free(ptr);
 - ptr = NULL;
 + FREE_AND_NULL(ptr);
+
+@@
+expression E;
+@@
+- free(E);
+- E = NULL;
++ FREE_AND_NULL(E);
-- 
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