4.14-stable review patch. If anyone has any objections, please let me know.
------------------ From: Bryan Tan <[email protected]> [ Upstream commit 17748056ce123ee37fb7382bc698fc721e3c4a09 ] The QP cleanup did not previously call ib_umem_release, resulting in a user-triggerable kernel resource leak. Fixes: 29c8d9eba550 ("IB: Add vmw_pvrdma driver") Reviewed-by: Adit Ranadive <[email protected]> Reviewed-by: Aditya Sarwade <[email protected]> Reviewed-by: Jorgen Hansen <[email protected]> Signed-off-by: Bryan Tan <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]> Signed-off-by: Sasha Levin <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/infiniband/hw/vmw_pvrdma/pvrdma_qp.c | 7 +++++++ 1 file changed, 7 insertions(+) --- a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_qp.c +++ b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_qp.c @@ -406,6 +406,13 @@ static void pvrdma_free_qp(struct pvrdma atomic_dec(&qp->refcnt); wait_event(qp->wait, !atomic_read(&qp->refcnt)); + if (!qp->is_kernel) { + if (qp->rumem) + ib_umem_release(qp->rumem); + if (qp->sumem) + ib_umem_release(qp->sumem); + } + pvrdma_page_dir_cleanup(dev, &qp->pdir); kfree(qp);
