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ACPI fix for 5.1-rc4

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Prevent stale GPE events from triggering spurious system wakeups from
 suspend-to-idle (Furquan Shaikh).
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Merge tag 'acpi-5.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI fix from Rafael Wysocki:
 "Prevent stale GPE events from triggering spurious system wakeups from
  suspend-to-idle (Furquan Shaikh)"

* tag 'acpi-5.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPICA: Clear status of GPEs before enabling them
This commit is contained in:
Linus Torvalds 2019-04-04 14:48:11 -10:00
commit b512f71221
1 changed files with 5 additions and 1 deletions
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6
drivers/acpi/acpica/evgpe.c
View File

@ -81,8 +81,12 @@ acpi_status acpi_ev_enable_gpe(struct acpi_gpe_event_info *gpe_event_info)
ACPI_FUNCTION_TRACE(ev_enable_gpe);
/* Enable the requested GPE */
/* Clear the GPE status */
status = acpi_hw_clear_gpe(gpe_event_info);
if (ACPI_FAILURE(status))
return_ACPI_STATUS(status);
/* Enable the requested GPE */
status = acpi_hw_low_set_gpe(gpe_event_info, ACPI_GPE_ENABLE);
return_ACPI_STATUS(status);
}