rtc: max77686: Fix the returned value in case of error in 'max77686_rtc_read_time()'

[ Upstream commit b28cc6cec3d814f5184cbebb2d1f987e769f534a ]

In case of error, we return 0.
This is spurious and not consistent with the other functions of the driver.
Commit e115a2bf1426 has modified more than what is said in the commit
message. Reverse part of it znd return an error when needed, as it was
previously.

Fixes: e115a2bf1426 ("rtc: max77686: stop validating rtc_time in .read_time")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/rtc/rtc-max77686.c b/drivers/rtc/rtc-max77686.c
index 8a60900d6b8b53af51d348355c065590bc6518a1..4aff349ae301a476ab579b753fa388f83b4a45fd 100644 (file)
--- a/drivers/rtc/rtc-max77686.c
+++ b/drivers/rtc/rtc-max77686.c
@@ -360,7 +360,7 @@ static int max77686_rtc_read_time(struct device *dev, struct rtc_time *tm)
 
 out:
        mutex_unlock(&info->lock);
-       return 0;
+       return ret;
 }
 
 static int max77686_rtc_set_time(struct device *dev, struct rtc_time *tm)