IB/rxe: Prevent from completer to operate on non valid QP
On UD QP completer tasklet is scheduled for each packet sent.
If it is followed by a destroy_qp(), the kernel panic will
happen as the completer tries to operate on a destroyed QP.
Fixes: 8700e3e7c4
("Soft RoCE driver")
Signed-off-by: Yonatan Cohen <yonatanc@mellanox.com>
Reviewed-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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@ -813,8 +813,7 @@ void rxe_qp_destroy(struct rxe_qp *qp)
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del_timer_sync(&qp->rnr_nak_timer);
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del_timer_sync(&qp->rnr_nak_timer);
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rxe_cleanup_task(&qp->req.task);
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rxe_cleanup_task(&qp->req.task);
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if (qp_type(qp) == IB_QPT_RC)
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rxe_cleanup_task(&qp->comp.task);
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rxe_cleanup_task(&qp->comp.task);
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/* flush out any receive wr's or pending requests */
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/* flush out any receive wr's or pending requests */
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__rxe_do_task(&qp->req.task);
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__rxe_do_task(&qp->req.task);
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