ACPI: PM: Emit debug messages when enabling/disabling wakeup power

[linux-2.6-microblaze.git] / drivers / acpi / power.c

diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c
index 5dcb02e..7945e60 100644 (file)
--- a/drivers/acpi/power.c
+++ b/drivers/acpi/power.c
@@ -716,6 +716,9 @@ int acpi_enable_wakeup_device_power(struct acpi_device *dev, int sleep_state)
 
        mutex_lock(&acpi_device_lock);
 
+       dev_dbg(&dev->dev, "Enabling wakeup power (count %d)\n",
+               dev->wakeup.prepare_count);
+
        if (dev->wakeup.prepare_count++)
                goto out;
 
@@ -734,8 +737,11 @@ int acpi_enable_wakeup_device_power(struct acpi_device *dev, int sleep_state)
        if (err) {
                acpi_power_off_list(&dev->wakeup.resources);
                dev->wakeup.prepare_count = 0;
+               goto out;
        }
 
+       dev_dbg(&dev->dev, "Wakeup power enabled\n");
+
  out:
        mutex_unlock(&acpi_device_lock);
        return err;
@@ -757,6 +763,9 @@ int acpi_disable_wakeup_device_power(struct acpi_device *dev)
 
        mutex_lock(&acpi_device_lock);
 
+       dev_dbg(&dev->dev, "Disabling wakeup power (count %d)\n",
+               dev->wakeup.prepare_count);
+
        /* Do nothing if wakeup power has not been enabled for this device. */
        if (dev->wakeup.prepare_count <= 0)
                goto out;
@@ -782,8 +791,11 @@ int acpi_disable_wakeup_device_power(struct acpi_device *dev)
        if (err) {
                dev_err(&dev->dev, "Cannot turn off wakeup power resources\n");
                dev->wakeup.flags.valid = 0;
+               goto out;
        }
 
+       dev_dbg(&dev->dev, "Wakeup power disabled\n");
+
  out:
        mutex_unlock(&acpi_device_lock);
        return err;