From: Dan Carpenter <dan.carpenter@oracle.com>
To: Alessandro Zummo <a.zummo@towertech.it>,
Ahmad Fatoum <a.fatoum@pengutronix.de>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>,
Sascha Hauer <s.hauer@pengutronix.de>,
linux-rtc@vger.kernel.org, kernel-janitors@vger.kernel.org
Subject: [PATCH] rtc: rv8803: unlock on error path in rv8803_set_time()
Date: Tue, 28 Jun 2022 09:58:45 +0300 [thread overview]
Message-ID: <YrqmpT873Y99+a2d@kili> (raw)
Call mutex_unlock(&rv8803->flags_lock) before returning if
rv8803_regs_reset() fails.
Fixes: f8176e0bb83f ("rtc: rv8803: initialize registers on post-probe voltage loss")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
drivers/rtc/rtc-rv8803.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/rtc/rtc-rv8803.c b/drivers/rtc/rtc-rv8803.c
index fe1247e771b9..3527a0521e9b 100644
--- a/drivers/rtc/rtc-rv8803.c
+++ b/drivers/rtc/rtc-rv8803.c
@@ -315,8 +315,10 @@ static int rv8803_set_time(struct device *dev, struct rtc_time *tm)
if (flags & RV8803_FLAG_V2F) {
ret = rv8803_regs_reset(rv8803);
- if (ret)
+ if (ret) {
+ mutex_unlock(&rv8803->flags_lock);
return ret;
+ }
}
ret = rv8803_write_reg(rv8803->client, RV8803_FLAG,
--
2.35.1
next reply other threads:[~2022-06-28 6:59 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-28 6:58 Dan Carpenter [this message]
2022-06-28 7:05 ` [PATCH] rtc: rv8803: unlock on error path in rv8803_set_time() Sascha Hauer
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