ACPI / PM: Do not refcount power resources that can't be turned on

If turning on a power resource fails, do not reference count it,
since it cannot be in use in that case.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c
index 792a8309d074..4c9c2fb5d98f 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)