Re: [PATCH] ib_isert: prevent NULL pointer dereference in isert_login_recv_done()

[Sagi Grimberg]

Just tested this patch, I wasn't able to reproduce the NULL pointer
dereference or any other bugs, so this fix seems safe enough to me.

Tested-by: Andrea Righi <righi.and...@gmail.com>

Can you test just the one liner fix below?

@@ -1452,7 +1452,7 @@
  isert_login_recv_done(struct ib_cq *cq, struct ib_wc *wc)
  {
        struct isert_conn *isert_conn = wc->qp->qp_context;
-       struct ib_device *ib_dev = isert_conn->cm_id->device;
+       struct ib_device *ib_dev = isert_conn->device->ib_device;

if (unlikely(wc->status != IB_WC_SUCCESS)) {

                isert_print_wc(wc, "login recv");