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rds: ib: add error handle

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[ Upstream commit 3b12f73a5c2977153f28a224392fd4729b50d1dc ]

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>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Zhu Yanjun 2017-03-07 02:48:36 -05:00 committed by Greg Kroah-Hartman
parent a495f72f8a
commit 5c6712ab4e
1 changed files with 36 additions and 11 deletions
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47
net/rds/ib_cm.c
View File

@ -405,7 +405,7 @@ static int rds_ib_setup_qp(struct rds_connection *conn)
ret = PTR_ERR(ic->i_send_cq);
ic->i_send_cq = NULL;
rdsdebug("ib_create_cq send failed: %d\n", ret);
goto out;
goto rds_ibdev_out;
}
cq_attr.cqe = ic->i_recv_ring.w_nr;
@ -416,19 +416,19 @@ static int rds_ib_setup_qp(struct rds_connection *conn)
ret = PTR_ERR(ic->i_recv_cq);
ic->i_recv_cq = NULL;
rdsdebug("ib_create_cq recv failed: %d\n", ret);
goto out;
goto send_cq_out;
}
ret = ib_req_notify_cq(ic->i_send_cq, IB_CQ_NEXT_COMP);
if (ret) {
rdsdebug("ib_req_notify_cq send failed: %d\n", ret);
goto out;
goto recv_cq_out;
}
ret = ib_req_notify_cq(ic->i_recv_cq, IB_CQ_SOLICITED);
if (ret) {
rdsdebug("ib_req_notify_cq recv failed: %d\n", ret);
goto out;
goto recv_cq_out;
}
/* XXX negotiate max send/recv with remote? */
@ -453,7 +453,7 @@ static int rds_ib_setup_qp(struct rds_connection *conn)
ret = rdma_create_qp(ic->i_cm_id, ic->i_pd, &attr);
if (ret) {
rdsdebug("rdma_create_qp failed: %d\n", ret);
goto out;
goto recv_cq_out;
}
ic->i_send_hdrs = ib_dma_alloc_coherent(dev,
@ -463,7 +463,7 @@ static int rds_ib_setup_qp(struct rds_connection *conn)
if (!ic->i_send_hdrs) {
ret = -ENOMEM;
rdsdebug("ib_dma_alloc_coherent send failed\n");
goto out;
goto qp_out;
}
ic->i_recv_hdrs = ib_dma_alloc_coherent(dev,
@ -473,7 +473,7 @@ static int rds_ib_setup_qp(struct rds_connection *conn)
if (!ic->i_recv_hdrs) {
ret = -ENOMEM;
rdsdebug("ib_dma_alloc_coherent recv failed\n");
goto out;
goto send_hdrs_dma_out;
}
ic->i_ack = ib_dma_alloc_coherent(dev, sizeof(struct rds_header),
@ -481,7 +481,7 @@ static int rds_ib_setup_qp(struct rds_connection *conn)
if (!ic->i_ack) {
ret = -ENOMEM;
rdsdebug("ib_dma_alloc_coherent ack failed\n");
goto out;
goto recv_hdrs_dma_out;
}
ic->i_sends = vzalloc_node(ic->i_send_ring.w_nr * sizeof(struct rds_ib_send_work),
@ -489,7 +489,7 @@ static int rds_ib_setup_qp(struct rds_connection *conn)
if (!ic->i_sends) {
ret = -ENOMEM;
rdsdebug("send allocation failed\n");
goto out;
goto ack_dma_out;
}
ic->i_recvs = vzalloc_node(ic->i_recv_ring.w_nr * sizeof(struct rds_ib_recv_work),
@ -497,7 +497,7 @@ static int rds_ib_setup_qp(struct rds_connection *conn)
if (!ic->i_recvs) {
ret = -ENOMEM;
rdsdebug("recv allocation failed\n");
goto out;
goto sends_out;
}
rds_ib_recv_init_ack(ic);
@ -505,8 +505,33 @@ static int rds_ib_setup_qp(struct rds_connection *conn)
rdsdebug("conn %p pd %p cq %p %p\n", conn, ic->i_pd,
ic->i_send_cq, ic->i_recv_cq);
out:
return ret;
sends_out:
vfree(ic->i_sends);
ack_dma_out:
ib_dma_free_coherent(dev, sizeof(struct rds_header),
ic->i_ack, ic->i_ack_dma);
recv_hdrs_dma_out:
ib_dma_free_coherent(dev, ic->i_recv_ring.w_nr *
sizeof(struct rds_header),
ic->i_recv_hdrs, ic->i_recv_hdrs_dma);
send_hdrs_dma_out:
ib_dma_free_coherent(dev, ic->i_send_ring.w_nr *
sizeof(struct rds_header),
ic->i_send_hdrs, ic->i_send_hdrs_dma);
qp_out:
rdma_destroy_qp(ic->i_cm_id);
recv_cq_out:
if (!ib_destroy_cq(ic->i_recv_cq))
ic->i_recv_cq = NULL;
send_cq_out:
if (!ib_destroy_cq(ic->i_send_cq))
ic->i_send_cq = NULL;
rds_ibdev_out:
rds_ib_remove_conn(rds_ibdev, conn);
rds_ib_dev_put(rds_ibdev);
return ret;
}