mc146818_get_time
int ret = mc146818_get_time(tm, 10);
if (mc146818_get_time(&tm, 1000)) {
if (unlikely(mc146818_get_time(&curr_time, 10) < 0)) {
if (mc146818_get_time(&tm, 1000)) {
if (mc146818_get_time(&time, 1000) < 0) {
ret = mc146818_get_time(t, 1000);
EXPORT_SYMBOL_GPL(mc146818_get_time);
int mc146818_get_time(struct rtc_time *time, int timeout);