diff options
| author | Rafael J. Wysocki <rjw@sisk.pl> | 2007-10-16 23:31:06 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-17 08:43:04 -0700 |
| commit | 36e02b62084efa72f1f04c95e13295a456f394c2 (patch) | |
| tree | 1fc2528c4508d83c34b25a46fee7266e2ce9f183 /drivers/pnp/pnpacpi/core.c | |
| parent | e8e961574b5b417d3fc277cbf436081fce4fc2e1 (diff) | |
| download | lwn-36e02b62084efa72f1f04c95e13295a456f394c2.tar.gz lwn-36e02b62084efa72f1f04c95e13295a456f394c2.zip | |
PNP: make pnpacpi_suspend handle errors
pnpacpi_suspend() doesn't check the result returned by
acpi_pm_device_sleep_state() before passing it to acpi_bus_set_power(),
which may not be desirable. Make it select the target power state of the
device using its second argument if acpi_pm_device_sleep_state() fails.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Looks-ok-to: Pavel Machek <pavel@ucw.cz>
Cc: Adam Belay <ambx1@neo.rr.com>
Cc: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/pnp/pnpacpi/core.c')
| -rw-r--r-- | drivers/pnp/pnpacpi/core.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/drivers/pnp/pnpacpi/core.c b/drivers/pnp/pnpacpi/core.c index a5a372222d69..e6a2a9fc7f0a 100644 --- a/drivers/pnp/pnpacpi/core.c +++ b/drivers/pnp/pnpacpi/core.c @@ -130,11 +130,16 @@ static int pnpacpi_disable_resources(struct pnp_dev *dev) #ifdef CONFIG_ACPI_SLEEP static int pnpacpi_suspend(struct pnp_dev *dev, pm_message_t state) { - return acpi_bus_set_power((acpi_handle) dev->data, - acpi_pm_device_sleep_state(&dev->dev, - device_may_wakeup - (&dev->dev), - NULL)); + int power_state; + + power_state = acpi_pm_device_sleep_state(&dev->dev, + device_may_wakeup(&dev->dev), + NULL); + if (power_state < 0) + power_state = (state.event == PM_EVENT_ON) ? + ACPI_STATE_D0 : ACPI_STATE_D3; + + return acpi_bus_set_power((acpi_handle) dev->data, power_state); } static int pnpacpi_resume(struct pnp_dev *dev) |