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RTC fixes for 5.15

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Drivers:
  - cmos: fix a locking issue
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Merge tag 'rtc-5.15-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux

Pull RTC fix from Alexandre Belloni:
 "Fix a locking issue in the cmos rtc driver"

* tag 'rtc-5.15-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux:
  rtc: cmos: Disable irq around direct invocation of cmos_interrupt()
This commit is contained in:
Linus Torvalds 2021-09-15 17:06:01 -07:00
commit 453fa43cdb
1 changed files with 2 additions and 0 deletions
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2
drivers/rtc/rtc-cmos.c
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@ -1047,7 +1047,9 @@ static void cmos_check_wkalrm(struct device *dev)
* ACK the rtc irq here
*/
if (t_now >= cmos->alarm_expires && cmos_use_acpi_alarm()) {
local_irq_disable();
cmos_interrupt(0, (void *)cmos->rtc);
local_irq_enable();
return;
}