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

diff --git a/sha1_file.c b/sha1_file.c
index 59a4ed2ed32336b41ab8f3b1d4aca30f045aa084..d67c88bb8d3483475ce8b6ecd7330d30a9311a81 100644 (file)
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -610,8 +610,7 @@ char *compute_alternate_path(const char *path, struct strbuf *err)
 
 out:
        if (seen_error) {
-               free(ref_git);
-               ref_git = NULL;
+               FREE_AND_NULL(ref_git);
        }
 
        return ref_git;