RDMA/qedr: Fix memory leak in user qp and mr

BugLink: https://bugs.launchpad.net/bugs/1860490
[ Upstream commit 24e412c1e00ebfe73619e6b88cbc26c2c7d41b85 ]

User QPs pbl's weren't freed properly.
MR pbls weren't freed properly.

Fixes: e0290cce6ac0 ("qedr: Add support for memory registeration verbs")
Link: https://lore.kernel.org/r/20191027200451.28187-5-michal.kalderon@marvell.com
Signed-off-by: Ariel Elior <ariel.elior@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Khalid Elmously <khalid.elmously@canonical.com>

diff --git a/drivers/infiniband/hw/qedr/verbs.c b/drivers/infiniband/hw/qedr/verbs.c
index 27d90a84ea01c9b8d4b9b0c96ef47a390a8cd6ea..0c9965e12ba9bad70916dcf3b95b713cfbe3d5c2 100644 (file)
--- a/drivers/infiniband/hw/qedr/verbs.c
+++ b/drivers/infiniband/hw/qedr/verbs.c
@@ -1577,6 +1577,14 @@ static void qedr_cleanup_user(struct qedr_dev *dev, struct qedr_qp *qp)
 
        ib_umem_release(qp->urq.umem);
        qp->urq.umem = NULL;
+
+       if (rdma_protocol_roce(&dev->ibdev, 1)) {
+               qedr_free_pbl(dev, &qp->usq.pbl_info, qp->usq.pbl_tbl);
+               qedr_free_pbl(dev, &qp->urq.pbl_info, qp->urq.pbl_tbl);
+       } else {
+               kfree(qp->usq.pbl_tbl);
+               kfree(qp->urq.pbl_tbl);
+       }
 }
 
 static int qedr_create_user_qp(struct qedr_dev *dev,
@@ -2674,8 +2682,8 @@ int qedr_dereg_mr(struct ib_mr *ib_mr, struct ib_udata *udata)
 
        dev->ops->rdma_free_tid(dev->rdma_ctx, mr->hw_mr.itid);
 
-       if ((mr->type != QEDR_MR_DMA) && (mr->type != QEDR_MR_FRMR))
-               qedr_free_pbl(dev, &mr->info.pbl_info, mr->info.pbl_table);
+       if (mr->type != QEDR_MR_DMA)
+               free_mr_info(dev, &mr->info);
 
        /* it could be user registered memory. */
        ib_umem_release(mr->umem);