From b0100bdb9dcd405f00248b1d4b6426bf14a2e576 Mon Sep 17 00:00:00 2001 From: Thomas Bogendoerfer Date: Thu, 13 Jul 2023 16:16:58 +0200 Subject: [PATCH] RDMA/mthca: Fix crash when polling CQ for shared QPs [ Upstream commit dc52aadbc1849cbe3fcf6bc54d35f6baa396e0a1 ] Commit 21c2fe94abb2 ("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: 21c2fe94abb2 ("RDMA/mthca: Combine special QP struct with mthca QP") Signed-off-by: Thomas Bogendoerfer Link: https://lore.kernel.org/r/20230713141658.9426-1-tbogendoerfer@suse.de Signed-off-by: Leon Romanovsky Signed-off-by: Sasha Levin --- drivers/infiniband/hw/mthca/mthca_qp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/mthca/mthca_qp.c b/drivers/infiniband/hw/mthca/mthca_qp.c index 08a2a7afafd3..3f57f7dfb822 100644 --- a/drivers/infiniband/hw/mthca/mthca_qp.c +++ b/drivers/infiniband/hw/mthca/mthca_qp.c @@ -1390,7 +1390,7 @@ int mthca_alloc_sqp(struct mthca_dev *dev, if (mthca_array_get(&dev->qp_table.qp, mqpn)) err = -EBUSY; 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); if (err)