coccinelle: make use of the "expression" FREE_AND_NULL() rule

diff --git a/blame.c b/blame.c
index 843c845cbaf6bc9d60ec8dcf79bad1ce0669319c..1183943960fab33f19067b28c346d12a6b99ec43 100644 (file)
--- a/blame.c
+++ b/blame.c
@@ -314,8 +314,7 @@ static void fill_origin_blob(struct diff_options *opt,
 static void drop_origin_blob(struct blame_origin *o)
 {
        if (o->file.ptr) {
-               free(o->file.ptr);
-               o->file.ptr = NULL;
+               FREE_AND_NULL(o->file.ptr);
        }
 }