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Validate requested sleep state in acpi_SetSleepState() to avoid reentry

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during wakeup procedure.
This commit is contained in:
Mitsuru IWASAKI 2001-11-23 05:57:03 +00:00
parent 324af1c9d1
commit 6397624d9b
1 changed files with 3 additions and 0 deletions
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3
sys/dev/acpica/acpi.c
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@ -1305,6 +1305,9 @@ acpi_SetSleepState(struct acpi_softc *sc, int state)
FUNCTION_TRACE_U32(__func__, state);
ACPI_ASSERTLOCK;
if (sc->acpi_sstate != ACPI_STATE_S0)
return_ACPI_STATUS(AE_BAD_PARAMETER); /* avoid reentry */
switch (state) {
case ACPI_STATE_S0: /* XXX only for testing */
status = AcpiEnterSleepState((UINT8)state);