Re: [Xen-devel] [PATCH v2] xen-netfront: avoid crashing on resume after a failure in talk_to_netback()

From: Vitaly Kuznetsov Date: Thu, 11 May 2017 13:58:06 +0200 > Unavoidable crashes in netfront_resume() and netback_changed() after a > previous fail in talk_to_netback() (e.g. when we fail to read MAC from > xenstore) were discovered. The failure path in talk_to_netback()

[Xen-devel] [PATCH v2] xen-netfront: avoid crashing on resume after a failure in talk_to_netback()

Unavoidable crashes in netfront_resume() and netback_changed() after a previous fail in talk_to_netback() (e.g. when we fail to read MAC from xenstore) were discovered. The failure path in talk_to_netback() does unregister/free for netdev but we don't reset drvdata and we try accessing it after