RDMA/cxgb4: Don't use null ep ptr
In c4iw_modify_qp() error path, only use qhp->ep if ep is not already set.
Otherwise qhp->ep can be NULL and we crash.
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
diff --git a/drivers/infiniband/hw/cxgb4/qp.c b/drivers/infiniband/hw/cxgb4/qp.c
index 5d11f86..4f5dd66 100644
--- a/drivers/infiniband/hw/cxgb4/qp.c
+++ b/drivers/infiniband/hw/cxgb4/qp.c
@@ -1305,7 +1305,8 @@
/* disassociate the LLP connection */
qhp->attr.llp_stream_handle = NULL;
- ep = qhp->ep;
+ if (!ep)
+ ep = qhp->ep;
qhp->ep = NULL;
qhp->attr.state = C4IW_QP_STATE_ERROR;
free = 1;