Add a missing bufq_init call. The original code never initialized it's

buffer queue so I missed this when I changed buf_queue_head.

This probably fixes Soren's problem too, but he never mentioned
which CD driver he was using. 8-)

Submitted by:	dave adkins <adkin003@tc.umn.edu>

sys/i386/isa/wcd.c

@@ -286,6 +286,7 @@ wcdattach (struct atapi *ata, int unit, struct atapi_params *ap, int debug)
 	}
 	wcdtab[wcdnlun] = t;
 	bzero (t, sizeof (struct wcd));
+	bufq_init(&t->buf_queue);
 	t->ata = ata;
 	t->unit = unit;
 	lun = t->lun = wcdnlun++;