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path: root/drivers/acpi/power.c
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Diffstat (limited to 'drivers/acpi/power.c')
-rw-r--r--drivers/acpi/power.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c
index 67dedeed144..4c9c2fb5d98 100644
--- a/drivers/acpi/power.c
+++ b/drivers/acpi/power.c
@@ -213,11 +213,13 @@ static int acpi_power_on(acpi_handle handle)
resource->name));
} else {
result = __acpi_power_on(resource);
+ if (result)
+ resource->ref_count--;
}
mutex_unlock(&resource->resource_lock);
- return 0;
+ return result;
}
static int acpi_power_off_device(acpi_handle handle)
@@ -465,10 +467,12 @@ int acpi_power_transition(struct acpi_device *device, int state)
struct acpi_handle_list *tl = NULL; /* Target Resources */
int i = 0;
-
if (!device || (state < ACPI_STATE_D0) || (state > ACPI_STATE_D3))
return -EINVAL;
+ if (device->power.state == state)
+ return 0;
+
if ((device->power.state < ACPI_STATE_D0)
|| (device->power.state > ACPI_STATE_D3))
return -ENODEV;
@@ -488,10 +492,6 @@ int acpi_power_transition(struct acpi_device *device, int state)
goto end;
}
- if (device->power.state == state) {
- goto end;
- }
-
/*
* Then we dereference all power resources used in the current list.
*/