cfile = filp_open(cache_file, O_CREAT | O_RDWR | O_LARGEFILE, 0600);
if (IS_ERR(cfile))
return PTR_ERR(cfile);
- if (!cfile->f_op || (!cfile->f_op->read && !cfile->f_op->aio_read)) {
+ if (!cfile->f_op->read && !cfile->f_op->aio_read) {
NS_ERR("alloc_device: cache file not readable\n");
err = -EINVAL;
goto err_close;