Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid

Pull HID fixes from Jiri Kosina:

 - NULL pointer dereference regression fix for Wacom driver (Jason
   Gerecke)

 - functional regression fix for pam handling on some Elan and Synaptics
   touchpads (Kai-Heng Feng)

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid:
  HID: wacom: Correct NULL dereference on AES pen proximity
  HID: multitouch: Apply MT_QUIRK_CONFIDENCE quirk for multi-input devices

drivers/hid/hid-multitouch.c

@@ -758,7 +758,8 @@ static int mt_touch_input_mapping(struct hid_device *hdev, struct hid_input *hi,
 			MT_STORE_FIELD(inrange_state);
 			return 1;
 		case HID_DG_CONFIDENCE:
-			if (cls->name == MT_CLS_WIN_8 &&
+			if ((cls->name == MT_CLS_WIN_8 ||
+			     cls->name == MT_CLS_WIN_8_FORCE_MULTI_INPUT) &&
 				(field->application == HID_DG_TOUCHPAD ||
 				 field->application == HID_DG_TOUCHSCREEN))
 				app->quirks |= MT_QUIRK_CONFIDENCE;

drivers/hid/wacom_sys.c

@@ -147,9 +147,9 @@ static int wacom_wac_pen_serial_enforce(struct hid_device *hdev,
 	}
 
 	if (flush)
-		wacom_wac_queue_flush(hdev, &wacom_wac->pen_fifo);
+		wacom_wac_queue_flush(hdev, wacom_wac->pen_fifo);
 	else if (insert)
-		wacom_wac_queue_insert(hdev, &wacom_wac->pen_fifo,
+		wacom_wac_queue_insert(hdev, wacom_wac->pen_fifo,
 				       raw_data, report_size);
 
 	return insert && !flush;
@@ -1280,7 +1280,7 @@ static void wacom_devm_kfifo_release(struct device *dev, void *res)
 static int wacom_devm_kfifo_alloc(struct wacom *wacom)
 {
 	struct wacom_wac *wacom_wac = &wacom->wacom_wac;
-	struct kfifo_rec_ptr_2 *pen_fifo = &wacom_wac->pen_fifo;
+	struct kfifo_rec_ptr_2 *pen_fifo;
 	int error;
 
 	pen_fifo = devres_alloc(wacom_devm_kfifo_release,
@@ -1297,6 +1297,7 @@ static int wacom_devm_kfifo_alloc(struct wacom *wacom)
 	}
 
 	devres_add(&wacom->hdev->dev, pen_fifo);
+	wacom_wac->pen_fifo = pen_fifo;
 
 	return 0;
 }

drivers/hid/wacom_wac.h

@@ -342,7 +342,7 @@ struct wacom_wac {
 	struct input_dev *pen_input;
 	struct input_dev *touch_input;
 	struct input_dev *pad_input;
-	struct kfifo_rec_ptr_2 pen_fifo;
+	struct kfifo_rec_ptr_2 *pen_fifo;
 	int pid;
 	int num_contacts_left;
 	u8 bt_features;