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| author | Roland Dreier <rolandd@cisco.com> | 2006-03-24 15:47:30 -0800 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2006-03-24 15:47:30 -0800 |
| commit | 192daa18dd7bfcaeb092a2ef928135745f2e6883 (patch) | |
| tree | f6bff7aac7acd0ec5935fa0ada2889d77f58d6f4 /drivers | |
| parent | 4e37b956161c3a3b160972c11c55f07b38b9830c (diff) | |
| download | kernel_samsung_aries-192daa18dd7bfcaeb092a2ef928135745f2e6883.zip kernel_samsung_aries-192daa18dd7bfcaeb092a2ef928135745f2e6883.tar.gz kernel_samsung_aries-192daa18dd7bfcaeb092a2ef928135745f2e6883.tar.bz2 | |
IB/mthca: Fix modify QP error path
If the call to mthca_MODIFY_QP() failed, then mthca_modify_qp() would
still do some things it shouldn't, such as store away attributes for
special QPs. Fix this, and simplify the code, by simply jumping to
the exit path if mthca_MODIFY_QP() fails.
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/infiniband/hw/mthca/mthca_qp.c | 21 |
1 files changed, 11 insertions, 10 deletions
diff --git a/drivers/infiniband/hw/mthca/mthca_qp.c b/drivers/infiniband/hw/mthca/mthca_qp.c index a09873d..1bc2678 100644 --- a/drivers/infiniband/hw/mthca/mthca_qp.c +++ b/drivers/infiniband/hw/mthca/mthca_qp.c @@ -777,21 +777,20 @@ int mthca_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask) err = mthca_MODIFY_QP(dev, cur_state, new_state, qp->qpn, 0, mailbox, sqd_event, &status); + if (err) + goto out; if (status) { mthca_warn(dev, "modify QP %d->%d returned status %02x.\n", cur_state, new_state, status); err = -EINVAL; + goto out; } - if (!err) { - qp->state = new_state; - if (attr_mask & IB_QP_ACCESS_FLAGS) - qp->atomic_rd_en = attr->qp_access_flags; - if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC) - qp->resp_depth = attr->max_dest_rd_atomic; - } - - mthca_free_mailbox(dev, mailbox); + qp->state = new_state; + if (attr_mask & IB_QP_ACCESS_FLAGS) + qp->atomic_rd_en = attr->qp_access_flags; + if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC) + qp->resp_depth = attr->max_dest_rd_atomic; if (is_sqp(dev, qp)) store_attrs(to_msqp(qp), attr, attr_mask); @@ -816,7 +815,7 @@ int mthca_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask) * If we moved a kernel QP to RESET, clean up all old CQ * entries and reinitialize the QP. */ - if (!err && new_state == IB_QPS_RESET && !qp->ibqp.uobject) { + if (new_state == IB_QPS_RESET && !qp->ibqp.uobject) { mthca_cq_clean(dev, to_mcq(qp->ibqp.send_cq)->cqn, qp->qpn, qp->ibqp.srq ? to_msrq(qp->ibqp.srq) : NULL); if (qp->ibqp.send_cq != qp->ibqp.recv_cq) @@ -835,6 +834,8 @@ int mthca_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask) } } +out: + mthca_free_mailbox(dev, mailbox); return err; } |