ACPI: thinkpad-acpi: fix a fan watchdog invocation

The fan control watchdog was being called in one place even when the fan
control operation had failed.  Fix it.

Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
diff --git a/drivers/misc/thinkpad_acpi.c b/drivers/misc/thinkpad_acpi.c
index f824259..b85f096 100644
--- a/drivers/misc/thinkpad_acpi.c
+++ b/drivers/misc/thinkpad_acpi.c
@@ -2888,9 +2888,10 @@
 	if (!rc && (status &
 		    (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) {
 		rc = fan_set_level(newlevel);
-		if (!rc)
+		if (!rc) {
 			fan_update_desired_level(newlevel);
-		fan_watchdog_reset();
+			fan_watchdog_reset();
+		}
 	}
 
 	mutex_unlock(&fan_mutex);