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Date: Fri, 20 Sep 2013 14:57:40 +0100 From: Paul Durrant <paul.durrant@...rix.com> To: <netdev@...r.kernel.org>, <xen-devel@...ts.xen.org> CC: Paul Durrant <paul.durrant@...rix.com>, David Vrabel <david.vrabel@...rix.com>, Wei Liu <wei.liu2@...rix.com>, Ian Campbell <ian.campbell@...rix.com> Subject: [PATCH net-next v2 2/2] xen-netback: handle frontends that fail to transition through Closing Some old Windows frontends fail to transition through the xenbus Closing state and move directly from Connected to Closed. Handle this case properly. Signed-off-by: Paul Durrant <paul.durrant@...rix.com> Cc: David Vrabel <david.vrabel@...rix.com> Cc: Wei Liu <wei.liu2@...rix.com> Cc: Ian Campbell <ian.campbell@...rix.com> --- drivers/net/xen-netback/xenbus.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/net/xen-netback/xenbus.c b/drivers/net/xen-netback/xenbus.c index a53782e..684b0f6 100644 --- a/drivers/net/xen-netback/xenbus.c +++ b/drivers/net/xen-netback/xenbus.c @@ -265,6 +265,13 @@ static void frontend_changed(struct xenbus_device *dev, break; case XenbusStateClosed: + /* + * Handle frontends which erroneously transition + * directly from Connected to Closed. + */ + if (dev->state == XenbusStateConnected) + disconnect_backend(dev); + xenbus_switch_state(dev, XenbusStateClosed); if (xenbus_dev_is_online(dev)) break; -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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