RDMA/bnxt_re: Fix error return code in bnxt_qplib_cq_process_terminal()

Fix to return a negative error code from the error handling case instead
of 0, as done elsewhere in this function.

Fixes: 1ac5a404 ("RDMA/bnxt_re: Add bnxt_re RoCE driver")
Link: https://lore.kernel.org/r/20210408113137.97202-1-wangwensheng4@huawei.comReported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wang Wensheng <wangwensheng4@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

drivers/infiniband/hw/bnxt_re/qplib_fp.c

@@ -2784,6 +2784,7 @@ static int bnxt_qplib_cq_process_terminal(struct bnxt_qplib_cq *cq,
 		dev_err(&cq->hwq.pdev->dev,
 			"FP: CQ Processed terminal reported rq_cons_idx 0x%x exceeds max 0x%x\n",
 			cqe_cons, rq->max_wqe);
+		rc = -EINVAL;
 		goto done;
 	}