rtc: m41t80: use rtc_lock/rtc_unlock

Avoid accessing directly rtc->ops_lock and use the RTC core helpers.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210119220653.677750-8-alexandre.belloni@bootlin.com

diff --git a/drivers/rtc/rtc-m41t80.c b/drivers/rtc/rtc-m41t80.c
index e3ddd660d68c267cd3079643f2f4ed0bdf9fa686..ee0c1be0354ecee839efcac3d051b83e96486009 100644 (file)
--- a/drivers/rtc/rtc-m41t80.c
+++ b/drivers/rtc/rtc-m41t80.c
@@ -158,21 +158,20 @@ static irqreturn_t m41t80_handle_irq(int irq, void *dev_id)
 {
        struct i2c_client *client = dev_id;
        struct m41t80_data *m41t80 = i2c_get_clientdata(client);
-       struct mutex *lock = &m41t80->rtc->ops_lock;
        unsigned long events = 0;
        int flags, flags_afe;
 
-       mutex_lock(lock);
+       rtc_lock(m41t80->rtc);
 
        flags_afe = i2c_smbus_read_byte_data(client, M41T80_REG_ALARM_MON);
        if (flags_afe < 0) {
-               mutex_unlock(lock);
+               rtc_unlock(m41t80->rtc);
                return IRQ_NONE;
        }
 
        flags = i2c_smbus_read_byte_data(client, M41T80_REG_FLAGS);
        if (flags <= 0) {
-               mutex_unlock(lock);
+               rtc_unlock(m41t80->rtc);
                return IRQ_NONE;
        }
 
@@ -189,7 +188,7 @@ static irqreturn_t m41t80_handle_irq(int irq, void *dev_id)
                                          flags_afe);
        }
 
-       mutex_unlock(lock);
+       rtc_unlock(m41t80->rtc);
 
        return IRQ_HANDLED;
 }