HID: ntrig: apply NO_INIT_REPORTS quirk

[mv-sheeva.git] / drivers / hid / hid-ntrig.c

diff --git a/drivers/hid/hid-ntrig.c b/drivers/hid/hid-ntrig.c
index beb403421e72e0efe30859c797ab2fc48fce40f5..f152b5114f0537a87cbe51f81edc9a95af724ea5 100644 (file)
--- a/drivers/hid/hid-ntrig.c
+++ b/drivers/hid/hid-ntrig.c
@@ -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);
@@ -826,7 +839,8 @@ static int ntrig_probe(struct hid_device *hdev, const struct hid_device_id *id)
        struct hid_report *report;
 
        if (id->driver_data)
-               hdev->quirks |= HID_QUIRK_MULTI_INPUT;
+               hdev->quirks |= HID_QUIRK_MULTI_INPUT
+                               | HID_QUIRK_NO_INIT_REPORTS;
 
        nd = kmalloc(sizeof(struct ntrig_data), GFP_KERNEL);
        if (!nd) {