coccinelle: add a rule to make "type" code use FREE_AND_NULL()

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
8 years ago · cf9f49ea48
1 changed files with 8 additions and 0 deletions
--- a/contrib/coccinelle/free.cocci
+++ b/contrib/coccinelle/free.cocci
@ -9,3 +9,11 @@ expression E;
				@@ -9,3 +9,11 @@ expression E;
@@
 - if (!E)
  free(E);
+
+@@
+type T;
+T *ptr;
+@@
+- free(ptr);
+- ptr = NULL;
+ FREE_AND_NULL(ptr);