RTL_EPATCH_SIGNATURE
if (!memcmp(btrtl_dev->fw_data, RTL_EPATCH_SIGNATURE, 8))
if (memcmp(btrtl_dev->fw_data, RTL_EPATCH_SIGNATURE, 8) != 0) {
if (!memcmp(btrtl_dev->fw_data, RTL_EPATCH_SIGNATURE, 8)) {