static void wacom_calculate_res(struct wacom_features *features)
 {
+       /* set unit to "100th of a mm" for devices not reported by HID */
+       if (!features->unit) {
+               features->unit = 0x11;
+               features->unitExpo = -3;
+       }
+
        features->x_resolution = wacom_calc_hid_res(features->x_max,
                                                    features->x_phy,
                                                    features->unit,
        wacom_retrieve_hid_descriptor(hdev, features);
 
        wacom_setup_device_quirks(wacom);
-
-       /* set unit to "100th of a mm" for devices not reported by HID */
-       if (!features->unit) {
-               features->unit = 0x11;
-               features->unitExpo = -3;
-       }
        wacom_calculate_res(features);
 
        strlcpy(wacom_wac->name, features->name, sizeof(wacom_wac->name));