svcrdma: Don't leak send_ctxt on Send errors

[ Upstream commit 351461f ]

Address a rare send_ctxt leak in the svc_rdma_sendto() error paths.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

net/sunrpc/xprtrdma/svc_rdma_sendto.c

@@ -958,7 +958,7 @@ int svc_rdma_sendto(struct svc_rqst *rqstp)
 	p = xdr_reserve_space(&sctxt->sc_stream,
 			      rpcrdma_fixed_maxsz * sizeof(*p));
 	if (!p)
-		goto err0;
+		goto err1;
 
 	ret = svc_rdma_send_reply_chunk(rdma, rctxt, &rqstp->rq_res);
 	if (ret < 0)
@@ -970,11 +970,11 @@ int svc_rdma_sendto(struct svc_rqst *rqstp)
 	*p = pcl_is_empty(&rctxt->rc_reply_pcl) ? rdma_msg : rdma_nomsg;
 
 	if (svc_rdma_encode_read_list(sctxt) < 0)
-		goto err0;
+		goto err1;
 	if (svc_rdma_encode_write_list(rctxt, sctxt) < 0)
-		goto err0;
+		goto err1;
 	if (svc_rdma_encode_reply_chunk(rctxt, sctxt, ret) < 0)
-		goto err0;
+		goto err1;
 
 	ret = svc_rdma_send_reply_msg(rdma, sctxt, rctxt, rqstp);
 	if (ret < 0)