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RDMA/qedr: Fix return code if accept is called on a destroyed qp 

[ Upstream commit 8a5a10a1a7 ]

In iWARP, accept could be called after a QP is already destroyed.  In this
case an error should be returned and not success.

Fixes: 82af6d19d8 ("RDMA/qedr: Fix synchronization methods and memory leaks in qedr")
Link: https://lore.kernel.org/r/20200902165741.8355-5-michal.kalderon@marvell.com
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
5.4-rM2-2.2.x-imx-squashed
Michal Kalderon 2020-09-02 19:57:37 +03:00 committed by Greg Kroah-Hartman
parent 4c5f385ab4
commit 97336c8296
1 changed files with 4 additions and 2 deletions
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6
drivers/infiniband/hw/qedr/qedr_iw_cm.c
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@ -736,7 +736,7 @@ int qedr_iw_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
struct qedr_dev *dev = ep->dev;
struct qedr_qp *qp;
struct qed_iwarp_accept_in params;
int rc = 0;
int rc;
DP_DEBUG(dev, QEDR_MSG_IWARP, "Accept on qpid=%d\n", conn_param->qpn);
@ -759,8 +759,10 @@ int qedr_iw_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
params.ord = conn_param->ord;
if (test_and_set_bit(QEDR_IWARP_CM_WAIT_FOR_CONNECT,
&qp->iwarp_cm_flags))
&qp->iwarp_cm_flags)) {
rc = -EINVAL;
goto err; /* QP already destroyed */
}
rc = dev->ops->iwarp_accept(dev->rdma_ctx, &params);
if (rc) {