forked from Minki/linux
rds: ib: add error handle
In the function rds_ib_setup_qp, the error handle is missing. When some error occurs, it is possible that memory leak occurs. As such, error handle is added. Cc: Joe Jin <joe.jin@oracle.com> Reviewed-by: Junxiao Bi <junxiao.bi@oracle.com> Reviewed-by: Guanglei Li <guanglei.li@oracle.com> Signed-off-by: Zhu Yanjun <yanjun.zhu@oracle.com> Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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67e303e0c7
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3b12f73a5c
@ -442,7 +442,7 @@ static int rds_ib_setup_qp(struct rds_connection *conn)
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ic->i_send_cq = NULL;
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ibdev_put_vector(rds_ibdev, ic->i_scq_vector);
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rdsdebug("ib_create_cq send failed: %d\n", ret);
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goto out;
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goto rds_ibdev_out;
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}
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ic->i_rcq_vector = ibdev_get_unused_vector(rds_ibdev);
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@ -456,19 +456,19 @@ static int rds_ib_setup_qp(struct rds_connection *conn)
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ic->i_recv_cq = NULL;
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ibdev_put_vector(rds_ibdev, ic->i_rcq_vector);
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rdsdebug("ib_create_cq recv failed: %d\n", ret);
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goto out;
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goto send_cq_out;
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}
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ret = ib_req_notify_cq(ic->i_send_cq, IB_CQ_NEXT_COMP);
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if (ret) {
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rdsdebug("ib_req_notify_cq send failed: %d\n", ret);
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goto out;
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goto recv_cq_out;
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}
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ret = ib_req_notify_cq(ic->i_recv_cq, IB_CQ_SOLICITED);
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if (ret) {
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rdsdebug("ib_req_notify_cq recv failed: %d\n", ret);
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goto out;
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goto recv_cq_out;
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}
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/* XXX negotiate max send/recv with remote? */
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@ -494,7 +494,7 @@ static int rds_ib_setup_qp(struct rds_connection *conn)
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ret = rdma_create_qp(ic->i_cm_id, ic->i_pd, &attr);
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if (ret) {
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rdsdebug("rdma_create_qp failed: %d\n", ret);
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goto out;
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goto recv_cq_out;
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}
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ic->i_send_hdrs = ib_dma_alloc_coherent(dev,
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@ -504,7 +504,7 @@ static int rds_ib_setup_qp(struct rds_connection *conn)
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if (!ic->i_send_hdrs) {
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ret = -ENOMEM;
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rdsdebug("ib_dma_alloc_coherent send failed\n");
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goto out;
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goto qp_out;
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}
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ic->i_recv_hdrs = ib_dma_alloc_coherent(dev,
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@ -514,7 +514,7 @@ static int rds_ib_setup_qp(struct rds_connection *conn)
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if (!ic->i_recv_hdrs) {
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ret = -ENOMEM;
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rdsdebug("ib_dma_alloc_coherent recv failed\n");
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goto out;
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goto send_hdrs_dma_out;
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}
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ic->i_ack = ib_dma_alloc_coherent(dev, sizeof(struct rds_header),
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@ -522,7 +522,7 @@ static int rds_ib_setup_qp(struct rds_connection *conn)
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if (!ic->i_ack) {
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ret = -ENOMEM;
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rdsdebug("ib_dma_alloc_coherent ack failed\n");
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goto out;
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goto recv_hdrs_dma_out;
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}
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ic->i_sends = vzalloc_node(ic->i_send_ring.w_nr * sizeof(struct rds_ib_send_work),
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@ -530,7 +530,7 @@ static int rds_ib_setup_qp(struct rds_connection *conn)
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if (!ic->i_sends) {
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ret = -ENOMEM;
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rdsdebug("send allocation failed\n");
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goto out;
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goto ack_dma_out;
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}
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ic->i_recvs = vzalloc_node(ic->i_recv_ring.w_nr * sizeof(struct rds_ib_recv_work),
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@ -538,7 +538,7 @@ static int rds_ib_setup_qp(struct rds_connection *conn)
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if (!ic->i_recvs) {
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ret = -ENOMEM;
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rdsdebug("recv allocation failed\n");
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goto out;
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goto sends_out;
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}
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rds_ib_recv_init_ack(ic);
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@ -546,8 +546,33 @@ static int rds_ib_setup_qp(struct rds_connection *conn)
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rdsdebug("conn %p pd %p cq %p %p\n", conn, ic->i_pd,
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ic->i_send_cq, ic->i_recv_cq);
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out:
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return ret;
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sends_out:
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vfree(ic->i_sends);
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ack_dma_out:
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ib_dma_free_coherent(dev, sizeof(struct rds_header),
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ic->i_ack, ic->i_ack_dma);
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recv_hdrs_dma_out:
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ib_dma_free_coherent(dev, ic->i_recv_ring.w_nr *
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sizeof(struct rds_header),
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ic->i_recv_hdrs, ic->i_recv_hdrs_dma);
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send_hdrs_dma_out:
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ib_dma_free_coherent(dev, ic->i_send_ring.w_nr *
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sizeof(struct rds_header),
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ic->i_send_hdrs, ic->i_send_hdrs_dma);
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qp_out:
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rdma_destroy_qp(ic->i_cm_id);
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recv_cq_out:
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if (!ib_destroy_cq(ic->i_recv_cq))
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ic->i_recv_cq = NULL;
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send_cq_out:
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if (!ib_destroy_cq(ic->i_send_cq))
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ic->i_send_cq = NULL;
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rds_ibdev_out:
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rds_ib_remove_conn(rds_ibdev, conn);
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rds_ib_dev_put(rds_ibdev);
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return ret;
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}
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