From 36e02b62084efa72f1f04c95e13295a456f394c2 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Tue, 16 Oct 2007 23:31:06 -0700 Subject: [PATCH] PNP: make pnpacpi_suspend handle errors MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 Looks-ok-to: Pavel Machek Cc: Adam Belay Cc: Bjorn Helgaas Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/pnp/pnpacpi/core.c | 15 ++++++++++----- 1 file 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)