diff options
Diffstat (limited to 'drivers/acpi/sleep/main.c')
| -rw-r--r-- | drivers/acpi/sleep/main.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/drivers/acpi/sleep/main.c b/drivers/acpi/sleep/main.c index 485de1347075..293a1cbb47c0 100644 --- a/drivers/acpi/sleep/main.c +++ b/drivers/acpi/sleep/main.c @@ -170,7 +170,7 @@ static int acpi_pm_enter(suspend_state_t pm_state) /* Reprogram control registers and execute _BFS */ acpi_leave_sleep_state_prep(acpi_state); - /* ACPI 3.0 specs (P62) says that it's the responsabilty + /* ACPI 3.0 specs (P62) says that it's the responsibility * of the OSPM to clear the status bit [ implying that the * POWER_BUTTON event should not reach userspace ] */ @@ -472,11 +472,20 @@ int acpi_pm_device_sleep_state(struct device *dev, int wake, int *d_min_p) if (acpi_target_sleep_state == ACPI_STATE_S0 || (wake && adev->wakeup.state.enabled && adev->wakeup.sleep_state <= acpi_target_sleep_state)) { + acpi_status status; + acpi_method[3] = 'W'; - acpi_evaluate_integer(handle, acpi_method, NULL, &d_max); - /* Sanity check */ - if (d_max < d_min) + status = acpi_evaluate_integer(handle, acpi_method, NULL, + &d_max); + if (ACPI_FAILURE(status)) { + d_max = d_min; + } else if (d_max < d_min) { + /* Warn the user of the broken DSDT */ + printk(KERN_WARNING "ACPI: Wrong value from %s\n", + acpi_method); + /* Sanitize it */ d_min = d_max; + } } if (d_min_p) |