diff -Naur linux-2.6.0/drivers/scsi/sg.c linux-2.6.0-sg/drivers/scsi/sg.c
--- linux-2.6.0/drivers/scsi/sg.c	Mon Dec  8 11:10:40 2003
+++ linux-2.6.0-sg/drivers/scsi/sg.c	Mon Dec 29 13:03:35 2003
@@ -1219,6 +1219,8 @@
 	Sg_device *sdp = NULL;
 	Sg_fd *sfp;
 	Sg_request *srp = NULL;
+	request_queue_t *q;
+	unsigned long flags = 0;
 
 	if (SCpnt && (SRpnt = SCpnt->sc_request))
 		srp = (Sg_request *) SRpnt->upper_private_data;
@@ -1284,6 +1286,12 @@
 	}
 	/* Rely on write phase to clean out srp status values, so no "else" */
 
+	q = SRpnt->sr_device->request_queue;
+	spin_lock_irqsave(q->queue_lock, flags);
+	if (blk_rq_tagged(SRpnt->sr_request))
+		blk_queue_end_tag(q, SRpnt->sr_request);
+	spin_unlock_irqrestore(q->queue_lock, flags);
+
 	scsi_release_request(SRpnt);
 	SRpnt = NULL;
 	if (sfp->closed) {	/* whoops this fd already released, cleanup */