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| author | David S. Miller <davem@davemloft.net> | 2014-11-29 20:47:48 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-11-29 20:47:48 -0800 |
| commit | 60b7379dc5b1743427b031cca53e30860a38ada6 (patch) | |
| tree | c0462b8dd188861bd04f36dd31672b7446e35dd8 /drivers/net/xen-netback | |
| parent | a523a5ecc8c6ddceb8f783f600605553e5ad8963 (diff) | |
| parent | 7a5a4f978750756755dc839014e13d1b088ccc8e (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'drivers/net/xen-netback')
| -rw-r--r-- | drivers/net/xen-netback/xenbus.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/drivers/net/xen-netback/xenbus.c b/drivers/net/xen-netback/xenbus.c index 4e56a27f9689..fab0d4b42f58 100644 --- a/drivers/net/xen-netback/xenbus.c +++ b/drivers/net/xen-netback/xenbus.c @@ -39,7 +39,7 @@ struct backend_info { static int connect_rings(struct backend_info *be, struct xenvif_queue *queue); static void connect(struct backend_info *be); static int read_xenbus_vif_flags(struct backend_info *be); -static void backend_create_xenvif(struct backend_info *be); +static int backend_create_xenvif(struct backend_info *be); static void unregister_hotplug_status_watch(struct backend_info *be); static void set_backend_state(struct backend_info *be, enum xenbus_state state); @@ -352,7 +352,9 @@ static int netback_probe(struct xenbus_device *dev, be->state = XenbusStateInitWait; /* This kicks hotplug scripts, so do it immediately. */ - backend_create_xenvif(be); + err = backend_create_xenvif(be); + if (err) + goto fail; return 0; @@ -397,19 +399,19 @@ static int netback_uevent(struct xenbus_device *xdev, } -static void backend_create_xenvif(struct backend_info *be) +static int backend_create_xenvif(struct backend_info *be) { int err; long handle; struct xenbus_device *dev = be->dev; if (be->vif != NULL) - return; + return 0; err = xenbus_scanf(XBT_NIL, dev->nodename, "handle", "%li", &handle); if (err != 1) { xenbus_dev_fatal(dev, err, "reading handle"); - return; + return (err < 0) ? err : -EINVAL; } be->vif = xenvif_alloc(&dev->dev, dev->otherend_id, handle); @@ -417,10 +419,11 @@ static void backend_create_xenvif(struct backend_info *be) err = PTR_ERR(be->vif); be->vif = NULL; xenbus_dev_fatal(dev, err, "creating interface"); - return; + return err; } kobject_uevent(&dev->dev.kobj, KOBJ_ONLINE); + return 0; } static void backend_disconnect(struct backend_info *be) |