failtest: fix locking code.

We need to get the locks back *after* the child runs.

diff --git a/ccan/failtest/failtest.c b/ccan/failtest/failtest.c
index 7d842d80fd035c9331ff7819c38906d30804aff3..e2e6c64fec64d188fed1b92184fbf64ad9951fd1 100644 (file)
--- a/ccan/failtest/failtest.c
+++ b/ccan/failtest/failtest.c
@@ -983,7 +983,6 @@ int failtest_fcntl(int fd, const char *file, unsigned line, int cmd, ...)
        }
 
        p = add_history(FAILTEST_FCNTL, file, line, &call);
-       get_locks();
 
        if (should_fail(p)) {
                p->u.fcntl.ret = -1;
@@ -992,6 +991,7 @@ int failtest_fcntl(int fd, const char *file, unsigned line, int cmd, ...)
                else
                        p->error = EDEADLK;
        } else {
+               get_locks();
                p->u.fcntl.ret = fcntl(p->u.fcntl.fd, p->u.fcntl.cmd,
                                       &p->u.fcntl.arg.fl);
                if (p->u.fcntl.ret == -1)