[PATCH v4 4/6] coccinelle: add a rule to make "expression" code use FREE_AND_NULL()

From: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Date: Jun 15, 2017, 23:15 UTC
Message-ID: <20170615231549.20085-5-avarab@gmail.com>
In-Reply-To: <20170615231549.20085-1-avarab@gmail.com>

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>
---
 contrib/coccinelle/free.cocci | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/contrib/coccinelle/free.cocci b/contrib/coccinelle/free.cocci
index 35fb992621..f2d97e755b 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);

-- 
2.13.1.508.gb3defc5cc