Local variable 'error' in dev_pm_qos_add_ancestor_request() need
not contain error codes only, so rename it to 'ret'.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
                                    struct dev_pm_qos_request *req, s32 value)
 {
        struct device *ancestor = dev->parent;
-       int error = -ENODEV;
+       int ret = -ENODEV;
 
        while (ancestor && !ancestor->power.ignore_children)
                ancestor = ancestor->parent;
 
        if (ancestor)
-               error = dev_pm_qos_add_request(ancestor, req,
-                                              DEV_PM_QOS_LATENCY, value);
+               ret = dev_pm_qos_add_request(ancestor, req,
+                                            DEV_PM_QOS_LATENCY, value);
 
-       if (error < 0)
+       if (ret < 0)
                req->dev = NULL;
 
-       return error;
+       return ret;
 }
 EXPORT_SYMBOL_GPL(dev_pm_qos_add_ancestor_request);