IB/hfi1: remove unlikely() from IS_ERR*() condition

"unlikely(IS_ERR_OR_NULL(x))" is excessive. IS_ERR_OR_NULL() already uses
unlikely() internally.

Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Denis Efremov <[email protected]>
Cc: Mike Marciniszyn <[email protected]>
Cc: Joe Perches <[email protected]>
Acked-by: Dennis Dalessandro <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

Author: evdenis

drivers/infiniband/hw/hfi1/verbs.c

@@ -1041,7 +1041,7 @@ int hfi1_verbs_send_pio(struct rvt_qp *qp, struct hfi1_pkt_state *ps,
 	if (cb)
 		iowait_pio_inc(&priv->s_iowait);
 	pbuf = sc_buffer_alloc(sc, plen, cb, qp);
-	if (unlikely(IS_ERR_OR_NULL(pbuf))) {
+	if (IS_ERR_OR_NULL(pbuf)) {
 		if (cb)
 			verbs_pio_complete(qp, 0);
 		if (IS_ERR(pbuf)) {