linux-kernel - [PATCH v4 2/9] rtc: change return values of mc146818_get

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Message-Id: <20211210200131.153887-3-mat.jonczyk@o2.pl>
Date:   Fri, 10 Dec 2021 21:01:24 +0100
From:   Mateusz Jończyk <mat.jonczyk@...pl>
To:     linux-rtc@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Mateusz Jończyk <mat.jonczyk@...pl>,
        Alessandro Zummo <a.zummo@...ertech.it>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>
Subject: [PATCH v4 2/9] rtc: change return values of mc146818_get_time()

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@...pl>
Cc: Alessandro Zummo <a.zummo@...ertech.it>
Cc: Alexandre Belloni <alexandre.belloni@...tlin.com>

---

v4: Added this patch

 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 dcfaf09946ee..c186c8c4982b 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);
 
-- 
2.25.1