Fix 2 bugs in mxge_attach()

- Don't leak slice resources when mxge_alloc_rings() fails

- Start taskq threads only after we know attach will succeed.  At
  boot time, taskqueue_terminate() will loop infinately, waiting
  for the threads to exit, and hang the system.

Submitted by: Panasas
MFC After: 3 days

1 files changed, 3 insertions, 3 deletions

diff --git a/sys/dev/mxge/if_mxge.c b/sys/dev/mxge/if_mxge.c
index 5b8bb99..d7f5825 100644
--- a/sys/dev/mxge/if_mxge.c
+++ b/sys/dev/mxge/if_mxge.c
@@ -4616,8 +4616,6 @@ mxge_attach(device_t dev)
 		err = ENOMEM;
 		goto abort_with_nothing;
 	}
-	taskqueue_start_threads(&sc->tq, 1, PI_NET, "%s taskq",
-				device_get_nameunit(sc->dev));
 
 	err = bus_dma_tag_create(NULL,			/* parent */
 				 1,			/* alignment */
@@ -4723,7 +4721,7 @@ mxge_attach(device_t dev)
 	err = mxge_alloc_rings(sc);
 	if (err != 0) {
 		device_printf(sc->dev, "failed to allocate rings\n");
-		goto abort_with_dmabench;
+		goto abort_with_slices;
 	}
 
 	err = mxge_add_irq(sc);
@@ -4781,6 +4779,8 @@ mxge_attach(device_t dev)
 	ifp->if_transmit = mxge_transmit;
 	ifp->if_qflush = mxge_qflush;
 #endif
+	taskqueue_start_threads(&sc->tq, 1, PI_NET, "%s taskq",
+				device_get_nameunit(sc->dev));
 	callout_reset(&sc->co_hdl, mxge_ticks, mxge_tick, sc);
 	return 0;