failtest: avoid complaints about copying uninitializes memory.

[ccan] / ccan / failtest / failtest.c

diff --git a/ccan/failtest/failtest.c b/ccan/failtest/failtest.c
index c61ce442a5d03b39444a87a468514f23c6f3c962..205ded254709e6611d67b4465ca3967744306252 100644 (file)
--- a/ccan/failtest/failtest.c
+++ b/ccan/failtest/failtest.c
@@ -179,7 +179,8 @@ static struct failtest_call *add_history_(enum failtest_call_type type,
        call->line = line;
        call->cleanup = NULL;
        call->backtrace = get_backtrace(&call->backtrace_num);
-       memcpy(&call->u, elem, elem_size);
+       if (elem_size != 0)
+               memcpy(&call->u, elem, elem_size);
        tlist_add_tail(&history, call, list);
        return call;
 }
@@ -1202,9 +1203,8 @@ static void cleanup_pipe(struct pipe_call *call, bool restore)
 int failtest_pipe(int pipefd[2], const char *file, unsigned line)
 {
        struct failtest_call *p;
-       struct pipe_call call;
 
-       p = add_history(FAILTEST_PIPE, true, file, line, &call);
+       p = add_history_(FAILTEST_PIPE, true, file, line, NULL, 0);
        if (should_fail(p)) {
                p->u.open.ret = -1;
                /* FIXME: Play with error codes? */