[PATCH 5.15 144/277] rtc: mc146818-lib: change return values of mc146818_get_time()

[Greg Kroah-Hartman]

From: Mateusz Jończyk <mat.jonczyk@xxxxx>

[ Upstream commit d35786b3a28dee20b12962ae2dd365892a99ed1a ]

No function is checking mc146818_get_time() return values yet, so
correct them to make them more customary.

Signed-off-by: Mateusz Jończyk <mat.jonczyk@xxxxx>
Cc: Alessandro Zummo <a.zummo@xxxxxxxxxxxx>
Cc: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxx>
Signed-off-by: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxx>
Link: https://lore.kernel.org/r/20211210200131.153887-3-mat.jonczyk@xxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/rtc/rtc-mc146818-lib.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/rtc/rtc-mc146818-lib.c b/drivers/rtc/rtc-mc146818-lib.c
index 04b05e3b68cb..bd48cee3027e 100644
--- a/drivers/rtc/rtc-mc146818-lib.c
+++ b/drivers/rtc/rtc-mc146818-lib.c
@@ -25,7 +25,7 @@ unsigned int mc146818_get_time(struct rtc_time *time)
 	if (WARN_ON_ONCE((CMOS_READ(RTC_VALID) & 0x40) != 0)) {
 		spin_unlock_irqrestore(&rtc_lock, flags);
 		memset(time, 0xff, sizeof(*time));
-		return 0;
+		return -EIO;
 	}
 
 	/*
@@ -116,7 +116,7 @@ unsigned int mc146818_get_time(struct rtc_time *time)
 
 	time->tm_mon--;
 
-	return RTC_24H;
+	return 0;
 }
 EXPORT_SYMBOL_GPL(mc146818_get_time);
 
-- 
2.35.1