diff options
| author | spkal01 <kalligeross@gmail.com> | 2021-05-17 02:37:28 +0530 |
|---|---|---|
| committer | spkal01 <kalligeross@gmail.com> | 2021-05-17 02:37:28 +0530 |
| commit | 93b265ae2eba8d93d0ffa406958547232f3114c8 (patch) | |
| tree | c2f093aa144f732b5cf7bd8a0b45bf35eda42e1c /drivers/net/xen-netback/xenbus.c | |
| parent | 0a82617b8fce8994076b518064e7d420af290ea8 (diff) | |
| parent | 016f4ba70bffb6d02725e778c3989fa542e6d12a (diff) | |
Diffstat (limited to 'drivers/net/xen-netback/xenbus.c')
| -rw-r--r-- | drivers/net/xen-netback/xenbus.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/net/xen-netback/xenbus.c b/drivers/net/xen-netback/xenbus.c index 910322b442bd..9092b55e087f 100644 --- a/drivers/net/xen-netback/xenbus.c +++ b/drivers/net/xen-netback/xenbus.c @@ -1043,11 +1043,15 @@ static void connect(struct backend_info *be) xenvif_carrier_on(be->vif); unregister_hotplug_status_watch(be); - err = xenbus_watch_pathfmt(dev, &be->hotplug_status_watch, NULL, - hotplug_status_changed, - "%s/%s", dev->nodename, "hotplug-status"); - if (!err) + if (xenbus_exists(XBT_NIL, dev->nodename, "hotplug-status")) { + err = xenbus_watch_pathfmt(dev, &be->hotplug_status_watch, + NULL, hotplug_status_changed, + "%s/%s", dev->nodename, + "hotplug-status"); + if (err) + goto err; be->have_hotplug_status_watch = 1; + } netif_tx_wake_all_queues(be->vif->dev); |