RDMA/rtrs-clt: Remove duplicated code

process_info_rsp checks that sg_cnt is zero twice.

Link: https://lore.kernel.org/r/20201023074353.21946-10-jinpu.wang@cloud.ionos.com
Signed-off-by: Gioh Kim <gi-oh.kim@cloud.ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

drivers/infiniband/ulp/rtrs/rtrs-clt.c

@@ -2264,8 +2264,12 @@ static int process_info_rsp(struct rtrs_clt_sess *sess,
 	int i, sgi;
 
 	sg_cnt = le16_to_cpu(msg->sg_cnt);
-	if (unlikely(!sg_cnt))
+	if (unlikely(!sg_cnt || (sess->queue_depth % sg_cnt))) {
+		rtrs_err(sess->clt, "Incorrect sg_cnt %d, is not multiple\n",
+			  sg_cnt);
 		return -EINVAL;
+	}
+
 	/*
 	 * Check if IB immediate data size is enough to hold the mem_id and
 	 * the offset inside the memory chunk.
@@ -2278,11 +2282,6 @@ static int process_info_rsp(struct rtrs_clt_sess *sess,
 			  MAX_IMM_PAYL_BITS, sg_cnt, sess->chunk_size);
 		return -EINVAL;
 	}
-	if (unlikely(!sg_cnt || (sess->queue_depth % sg_cnt))) {
-		rtrs_err(sess->clt, "Incorrect sg_cnt %d, is not multiple\n",
-			  sg_cnt);
-		return -EINVAL;
-	}
 	total_len = 0;
 	for (sgi = 0, i = 0; sgi < sg_cnt && i < sess->queue_depth; sgi++) {
 		const struct rtrs_sg_desc *desc = &msg->desc[sgi];