RDMA/nes: Don't call event handler if pointer is NULL

Don't call the ibqp event_handler pointer in the case it wasn't initialized.

Signed-off-by: Tatyana Nikolova <Tatyana.E.Nikolova@intel.com>
Signed-off-by: Donald Wood <Donald.E.Wood@intel.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/infiniband/hw/nes/nes_cm.c b/drivers/infiniband/hw/nes/nes_cm.c
index 5c10cbfa2668..020e95c4c4b9 100644
--- a/drivers/infiniband/hw/nes/nes_cm.c
+++ b/drivers/infiniband/hw/nes/nes_cm.c
@@ -2884,7 +2884,8 @@ static int nes_cm_disconn_true(struct nes_qp *nesqp)
                         ibevent.device = nesqp->ibqp.device;
                         ibevent.event = nesqp->terminate_eventtype;
                         ibevent.element.qp = &nesqp->ibqp;
-                        nesqp->ibqp.event_handler(&ibevent, nesqp->ibqp.qp_context);
+                        if (nesqp->ibqp.event_handler)
+                                nesqp->ibqp.event_handler(&ibevent, nesqp->ibqp.qp_context);
                 }
         }