rtc: r7301: Replace spin_lock_irqsave with spin_lock in hard IRQ

It is redundant to do irqsave and irqrestore in hardIRQ context, where
it has been in a irq-disabled context.

Signed-off-by: Xiaofei Tan <tanxiaofei@huawei.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/1612355981-6764-4-git-send-email-tanxiaofei@huawei.com

diff --git a/drivers/rtc/rtc-r7301.c b/drivers/rtc/rtc-r7301.c
index aaf1b95e3990916a7d7f77bbf2657e9c7d72df87..5dbaeb7af648b7db5ef0470d0a5a7874653e35c9 100644 (file)
--- a/drivers/rtc/rtc-r7301.c
+++ b/drivers/rtc/rtc-r7301.c
@@ -320,11 +320,10 @@ static irqreturn_t rtc7301_irq_handler(int irq, void *dev_id)
 {
        struct rtc_device *rtc = dev_id;
        struct rtc7301_priv *priv = dev_get_drvdata(rtc->dev.parent);
-       unsigned long flags;
        irqreturn_t ret = IRQ_NONE;
        u8 alrm_ctrl;
 
-       spin_lock_irqsave(&priv->lock, flags);
+       spin_lock(&priv->lock);
 
        rtc7301_select_bank(priv, 1);
 
@@ -335,7 +334,7 @@ static irqreturn_t rtc7301_irq_handler(int irq, void *dev_id)
                rtc_update_irq(rtc, 1, RTC_IRQF | RTC_AF);
        }
 
-       spin_unlock_irqrestore(&priv->lock, flags);
+       spin_unlock(&priv->lock);
 
        return ret;
 }