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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
This commit is contained in:
Alexandre Belloni 2021-01-19 23:06:46 +01:00
parent 92e2c3e61d
commit 06c6e32167
1 changed files with 4 additions and 5 deletions
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9
drivers/rtc/rtc-m41t80.c
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@ -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;
}