[PATCH] rtc: sysfs: check features instead of ops

[Alexandre Belloni]

Test RTC_FEATURE_ALARM instead of relying on .set_alarm to know whether
alarms are available.

Signed-off-by: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxx>
---
 drivers/rtc/sysfs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/rtc/sysfs.c b/drivers/rtc/sysfs.c
index 8a957d31a1a4..74026f67fdfb 100644
--- a/drivers/rtc/sysfs.c
+++ b/drivers/rtc/sysfs.c
@@ -273,7 +273,7 @@ static bool rtc_does_wakealarm(struct rtc_device *rtc)
 	if (!device_can_wakeup(rtc->dev.parent))
 		return false;
 
-	return rtc->ops->set_alarm != NULL;
+	return !!test_bit(RTC_FEATURE_ALARM, rtc->features);
 }
 
 static umode_t rtc_attr_is_visible(struct kobject *kobj,
-- 
2.30.2