ACPI: fix fan after resume from S3

http://bugzilla.kernel.org/show_bug.cgi?id=7570

Signed-off-by: Konstantin Karasyov <konstantin.a.karasyov@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c
index 0ba7dfbbb2ee..01ce311ed6ee 100644
--- a/drivers/acpi/power.c
+++ b/drivers/acpi/power.c
@@ -412,6 +412,10 @@ 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.
          */