RDMA/cma: add missed unregister_pernet_subsys in init failure

BugLink: https://bugs.launchpad.net/bugs/1860602
[ Upstream commit 44a7b6759000ac51b92715579a7bba9e3f9245c2 ]

The driver forgets to call unregister_pernet_subsys() in the error path
of cma_init().
Add the missed call to fix it.

Fixes: 4be74b42a6d0 ("IB/cma: Separate port allocation to network namespaces")
Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
Reviewed-by: Parav Pandit <parav@mellanox.com>
Link: https://lore.kernel.org/r/20191206012426.12744-1-hslester96@gmail.com
Signed-off-by: Doug Ledford <dledford@redhat.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/core/cma.c b/drivers/infiniband/core/cma.c
index cdbf55222566b69d0b650aed5cf2df538589aea2..b7c3978bcd7b3293dc32d529a88d2bdbcf7b8eb8 100644 (file)
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -4588,6 +4588,7 @@ err:
        unregister_netdevice_notifier(&cma_nb);
        rdma_addr_unregister_client(&addr_client);
        ib_sa_unregister_client(&sa_client);
+       unregister_pernet_subsys(&cma_pernet_operations);
 err_wq:
        destroy_workqueue(cma_wq);
        return ret;