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authorXiaofei Tan2021-02-03 20:39:40 +0800
committerAlexandre Belloni2021-02-06 00:50:48 +0100
commit3f2d30184773e408c4e6f9e15c350828e482480c (patch)
tree84a16fd4ec3d06c4259607ed876fefaf3050a7be /drivers/rtc
parent669022c29af672205aaf53b76fd594dad2661ffe (diff)
rtc: mxc: 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/1612355981-6764-6-git-send-email-tanxiaofei@huawei.com
Diffstat (limited to 'drivers/rtc')
-rw-r--r--drivers/rtc/rtc-mxc.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/rtc/rtc-mxc.c b/drivers/rtc/rtc-mxc.c
index 65b29b0fa548..db57dda7ab97 100644
--- a/drivers/rtc/rtc-mxc.c
+++ b/drivers/rtc/rtc-mxc.c
@@ -189,11 +189,10 @@ static irqreturn_t mxc_rtc_interrupt(int irq, void *dev_id)
struct platform_device *pdev = dev_id;
struct rtc_plat_data *pdata = platform_get_drvdata(pdev);
void __iomem *ioaddr = pdata->ioaddr;
- unsigned long flags;
u32 status;
u32 events = 0;
- spin_lock_irqsave(&pdata->rtc->irq_lock, flags);
+ spin_lock(&pdata->rtc->irq_lock);
status = readw(ioaddr + RTC_RTCISR) & readw(ioaddr + RTC_RTCIENR);
/* clear interrupt sources */
writew(status, ioaddr + RTC_RTCISR);
@@ -209,7 +208,7 @@ static irqreturn_t mxc_rtc_interrupt(int irq, void *dev_id)
events |= (RTC_PF | RTC_IRQF);
rtc_update_irq(pdata->rtc, 1, events);
- spin_unlock_irqrestore(&pdata->rtc->irq_lock, flags);
+ spin_unlock(&pdata->rtc->irq_lock);
return IRQ_HANDLED;
}