tree fc45b9b6220c0023823c940589b72b04a810eea7
parent b27404f37a3dcb6384c812e5fd4f119ea12a5ed8
author Bjørn Mork <bjorn@mork.no> 1457381736 +0100
committer Mattias Nissler <mnissler@google.com> 1469024325 +0200

UPSTREAM: cdc_ncm: do not call usbnet_link_change from cdc_ncm_bind

usbnet_link_change will call schedule_work and should be
avoided if bind is failing. Otherwise we will end up with
scheduled work referring to a netdev which has gone away.

Instead of making the call conditional, we can just defer
it to usbnet_probe, using the driver_info flag made for
this purpose.

Fixes: 8a34b0ae8778 ("usbnet: cdc_ncm: apply usbnet_link_change")
Reported-by: Andrey Konovalov <andreyknvl@gmail.com>
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>

Bug: 28744625
Patchset: net-usb-cdc-ncm-link-change-fix

(cherry-picked from 4d06dd537f95683aba3651098ae288b7cbff8274)
Signed-off-by: Mattias Nissler <mnissler@google.com>

Change-Id: I844c8cd517a4973a8a23621ffcc472251e000923