diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index dbc4655a95768a518f3d091caa35f09542e7d9d5..4a5aad26ded75db670a25efbf0897c1d03d7e519 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -2573,7 +2573,9 @@ static void raid5_end_read_request(struct bio * bi)
 		    && !test_bit(R5_ReadNoMerge, &sh->dev[i].flags))
 			retry = 1;
 		if (retry)
-			if (test_bit(R5_ReadNoMerge, &sh->dev[i].flags)) {
+			if (sh->qd_idx >= 0 && sh->pd_idx == i)
+				set_bit(R5_ReadError, &sh->dev[i].flags);
+			else if (test_bit(R5_ReadNoMerge, &sh->dev[i].flags)) {
 				set_bit(R5_ReadError, &sh->dev[i].flags);
 				clear_bit(R5_ReadNoMerge, &sh->dev[i].flags);
 			} else