diff options
| author | Rafael J. Wysocki <rjw@sisk.pl> | 2008-01-11 00:10:38 +0100 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2008-01-11 23:21:52 -0500 |
| commit | ad3399c378993152f12c23304ee56d7f9108e758 (patch) | |
| tree | 291b224f242b9275048475a50fcb3f6cd7fec7a6 /drivers/acpi/sleep/main.c | |
| parent | 88fb61e4ba263685a0d5b82c7e9cd6f22a9e6a9d (diff) | |
ACPI: Fix acpi_pm_device_sleep_state()
Fix acpi_pm_device_sleep_state() to return the value returned
by _SxD if the device is supposed to wake up the system from
given sleep state and the evaluation of _SxW fails (e.g. _SxW
is not present).
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/sleep/main.c')
| -rw-r--r-- | drivers/acpi/sleep/main.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/drivers/acpi/sleep/main.c b/drivers/acpi/sleep/main.c index 2c0b6630f8b..99181c8f023 100644 --- a/drivers/acpi/sleep/main.c +++ b/drivers/acpi/sleep/main.c @@ -386,11 +386,20 @@ 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) |