[PATCH 11/19] rtc: m41t80: use guard

[alexandre . belloni]

From: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxx>

Use guard() to simplify error handling

Signed-off-by: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxx>
---
 drivers/rtc/rtc-m41t80.c | 12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

diff --git a/drivers/rtc/rtc-m41t80.c b/drivers/rtc/rtc-m41t80.c
index ec86ca3f2c4c..1385cb43864b 100644
--- a/drivers/rtc/rtc-m41t80.c
+++ b/drivers/rtc/rtc-m41t80.c
@@ -162,19 +162,15 @@ static irqreturn_t m41t80_handle_irq(int irq, void *dev_id)
 	unsigned long events = 0;
 	int flags, flags_afe;
 
-	rtc_lock(m41t80->rtc);
+	guard(rtc_ops)(m41t80->rtc);
 
 	flags_afe = i2c_smbus_read_byte_data(client, M41T80_REG_ALARM_MON);
-	if (flags_afe < 0) {
-		rtc_unlock(m41t80->rtc);
+	if (flags_afe < 0)
 		return IRQ_NONE;
-	}
 
 	flags = i2c_smbus_read_byte_data(client, M41T80_REG_FLAGS);
-	if (flags <= 0) {
-		rtc_unlock(m41t80->rtc);
+	if (flags <= 0)
 		return IRQ_NONE;
-	}
 
 	if (flags & M41T80_FLAGS_AF) {
 		flags &= ~M41T80_FLAGS_AF;
@@ -189,8 +185,6 @@ static irqreturn_t m41t80_handle_irq(int irq, void *dev_id)
 					  flags_afe);
 	}
 
-	rtc_unlock(m41t80->rtc);
-
 	return IRQ_HANDLED;
 }
 
-- 
2.56.0