--- zzzz-none-000/linux-3.10.107/sound/usb/usx2y/usbusx2y.h	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/sound/usb/usx2y/usbusx2y.h	2021-02-04 17:41:59.000000000 +0000
@@ -36,7 +36,7 @@
 	unsigned int		rate,
 				format;
 	int			chip_status;
-	struct mutex		prepare_mutex;
+	struct mutex		pcm_mutex;
 	struct us428ctls_sharedmem	*us428ctls_sharedmem;
 	int			wait_iso_frame;
 	wait_queue_head_t	us428ctls_wait_queue_head;