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RDMA/mthca: Fix crash when polling CQ for shared QPs

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[ Upstream commit dc52aadbc1 ]

Commit 21c2fe94ab ("RDMA/mthca: Combine special QP struct with mthca QP")
introduced a new struct mthca_sqp which doesn't contain struct mthca_qp
any longer. Placing a pointer of this new struct into qptable leads
to crashes, because mthca_poll_one() expects a qp pointer. Fix this
by putting the correct pointer into qptable.

Fixes: 21c2fe94ab ("RDMA/mthca: Combine special QP struct with mthca QP")
Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Link: https://lore.kernel.org/r/20230713141658.9426-1-tbogendoerfer@suse.de
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Thomas Bogendoerfer
2023-07-13 16:16:58 +02:00
committed by Greg Kroah-Hartman
parent 62a8a4cafa
commit b0100bdb9d
1 changed files with 1 additions and 1 deletions
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drivers/infiniband/hw/mthca/mthca_qp.c
+1 -1
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@@ -1390,7 +1390,7 @@ int mthca_alloc_sqp(struct mthca_dev *dev,
if (mthca_array_get(&dev->qp_table.qp, mqpn)) if (mthca_array_get(&dev->qp_table.qp, mqpn))
err = -EBUSY; err = -EBUSY;
else else
mthca_array_set(&dev->qp_table.qp, mqpn, qp->sqp); mthca_array_set(&dev->qp_table.qp, mqpn, qp);
spin_unlock_irq(&dev->qp_table.lock); spin_unlock_irq(&dev->qp_table.lock);
if (err) if (err)