@@ -539,8 +539,19 @@ static int ntrig_input_mapped(struct hid_device *hdev, struct hid_input *hi,
static int ntrig_event (struct hid_device *hid, struct hid_field *field,
struct hid_usage *usage, __s32 value)
{
- struct input_dev *input = field->hidinput->input;
struct ntrig_data *nd = hid_get_drvdata(hid);
+ struct input_dev *input;
+
+ /* Skip processing if not a claimed input */
+ if (!(hid->claimed & HID_CLAIMED_INPUT))
+ goto not_claimed_input;
+
+ /* This function is being called before the structures are fully
+ * initialized */
+ if(!(field->hidinput && field->hidinput->input))
+ return -EINVAL;
+
+ input = field->hidinput->input;
/* No special handling needed for the pen */
if (field->application == HID_DG_PEN)
@@ -810,6 +821,8 @@ static int ntrig_event (struct hid_device *hid, struct hid_field *field,
}
}
+not_claimed_input:
+
/* we have handled the hidinput part, now remains hiddev */
if ((hid->claimed & HID_CLAIMED_HIDDEV) && hid->hiddev_hid_event)
hid->hiddev_hid_event(hid, field, usage, value);