[PATCH] cocci: FREE_AND_NULL(E) is safe to call on NULL

From: Junio C Hamano <gitster@pobox.com>
Date: Sep 11, 2026, 22:21 UTC
Message-ID: <xmqqh5jv8m4w.fsf@gitster.g>
In-Reply-To: <xmqqld978mok.fsf@gitster.g>

Just like we allow calling free(E) without checking if E is not NULL, it is safe to call FREE_AND_NULL(E) unconditionally.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 tools/coccinelle/free.cocci | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/coccinelle/free.cocci b/tools/coccinelle/free.cocci
index 3dfaae9dd8..f2af140cfb 100644
--- a/tools/coccinelle/free.cocci
+++ b/tools/coccinelle/free.cocci
@@ -6,6 +6,8 @@ expression E;
   free(E);
 |
   commit_list_free(E);
+|
+  FREE_AND_NULL(E);
 )
 
 @@

-- 
2.56.0-rc0-143-g1fea62d0ca