Jeffle Xu <jefflexu@xxxxxxxxxxxxxxxxx> wrote: > + struct kref unbind_pincount;/* refcount to do daemon unbind */ Please use refcount_t or atomic_t, especially as this isn't the refcount for the structure. > - cachefiles_daemon_unbind(cache); > - > /* clean up the control file interface */ > cache->cachefilesd = NULL; > file->private_data = NULL; > cachefiles_open = 0; Please call cachefiles_daemon_unbind() before the cleanup. David