diff options
| author | Xiaofei Tan <tanxiaofei@huawei.com> | 2021-02-03 20:39:41 +0800 |
|---|---|---|
| committer | Alexandre Belloni <alexandre.belloni@bootlin.com> | 2021-02-06 00:50:48 +0100 |
| commit | 0c1095d334dafda22463454b0519c926447b555e (patch) | |
| tree | 483544b2b5b358689bd517882736c5fbfe6b981b /drivers/rtc/rtc-mxc_v2.c | |
| parent | 3f2d30184773e408c4e6f9e15c350828e482480c (diff) | |
| download | linux-0c1095d334dafda22463454b0519c926447b555e.tar.gz | |
rtc: mxc_v2: 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/1612355981-6764-7-git-send-email-tanxiaofei@huawei.com
Diffstat (limited to 'drivers/rtc/rtc-mxc_v2.c')
| -rw-r--r-- | drivers/rtc/rtc-mxc_v2.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/rtc/rtc-mxc_v2.c b/drivers/rtc/rtc-mxc_v2.c index 0d73f6f0cf9e4..a577a74aaf75a 100644 --- a/drivers/rtc/rtc-mxc_v2.c +++ b/drivers/rtc/rtc-mxc_v2.c @@ -74,13 +74,12 @@ static irqreturn_t mxc_rtc_interrupt(int irq, void *dev_id) struct device *dev = dev_id; struct mxc_rtc_data *pdata = dev_get_drvdata(dev); void __iomem *ioaddr = pdata->ioaddr; - unsigned long flags; u32 lp_status; u32 lp_cr; - spin_lock_irqsave(&pdata->lock, flags); + spin_lock(&pdata->lock); if (clk_enable(pdata->clk)) { - spin_unlock_irqrestore(&pdata->lock, flags); + spin_unlock(&pdata->lock); return IRQ_NONE; } @@ -104,7 +103,7 @@ static irqreturn_t mxc_rtc_interrupt(int irq, void *dev_id) mxc_rtc_sync_lp_locked(dev, ioaddr); clk_disable(pdata->clk); - spin_unlock_irqrestore(&pdata->lock, flags); + spin_unlock(&pdata->lock); return IRQ_HANDLED; } |