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| author | Xiaofei Tan <tanxiaofei@huawei.com> | 2021-02-03 20:39:36 +0800 |
|---|---|---|
| committer | Alexandre Belloni <alexandre.belloni@bootlin.com> | 2021-02-06 00:50:47 +0100 |
| commit | 6950d046eb6eabbc271fda416460c05f7a85698a (patch) | |
| tree | fa3899e4b3d3f321c4d0baf726e6515ee311dc12 /drivers/rtc/rtc-cmos.c | |
| parent | ddd0521549a975e6148732d6ca6b89ffa862c0e5 (diff) | |
| download | lwn-6950d046eb6eabbc271fda416460c05f7a85698a.tar.gz lwn-6950d046eb6eabbc271fda416460c05f7a85698a.zip | |
rtc: cmos: 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/1612355981-6764-2-git-send-email-tanxiaofei@huawei.com
Diffstat (limited to 'drivers/rtc/rtc-cmos.c')
| -rw-r--r-- | drivers/rtc/rtc-cmos.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c index c3746e249f5a..a99933e16404 100644 --- a/drivers/rtc/rtc-cmos.c +++ b/drivers/rtc/rtc-cmos.c @@ -643,11 +643,10 @@ static struct cmos_rtc cmos_rtc; static irqreturn_t cmos_interrupt(int irq, void *p) { - unsigned long flags; u8 irqstat; u8 rtc_control; - spin_lock_irqsave(&rtc_lock, flags); + spin_lock(&rtc_lock); /* When the HPET interrupt handler calls us, the interrupt * status is passed as arg1 instead of the irq number. But @@ -681,7 +680,7 @@ static irqreturn_t cmos_interrupt(int irq, void *p) hpet_mask_rtc_irq_bit(RTC_AIE); CMOS_READ(RTC_INTR_FLAGS); } - spin_unlock_irqrestore(&rtc_lock, flags); + spin_unlock(&rtc_lock); if (is_intr(irqstat)) { rtc_update_irq(p, 1, irqstat); |