Merge branch 'topic/hda-refresh-cleanup' into for-next

Merge a cleanup for HD-audio widget refresh code

Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/usb/line6/pcm.c

@@ -560,6 +560,11 @@ int line6_init_pcm(struct usb_line6 *line6,
 	line6pcm->max_packet_size_out =
 		usb_maxpacket(line6->usbdev,
 			usb_sndisocpipe(line6->usbdev, ep_write), 1);
+	if (!line6pcm->max_packet_size_in || !line6pcm->max_packet_size_out) {
+		dev_err(line6pcm->line6->ifcdev,
+			"cannot get proper max packet size\n");
+		return -EINVAL;
+	}
 
 	spin_lock_init(&line6pcm->out.lock);
 	spin_lock_init(&line6pcm->in.lock);