diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index 82312df..49c9873 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -1065,6 +1065,7 @@
 		return blk_trace_setup(sdp->device->request_queue,
 				       sdp->disk->disk_name,
 				       MKDEV(SCSI_GENERIC_MAJOR, sdp->index),
+				       NULL,
 				       (char *)arg);
 	case BLKTRACESTART:
 		return blk_trace_startstop(sdp->device->request_queue, 1);