tree f46a23718a949591f4161dadc902368452d7858f
parent 2d2517ee314ef1de0517f74d06c2825fbf597ba3
author Jakub Kicinski <jakub.kicinski@netronome.com> 1491346615 -0700
committer David S. Miller <davem@davemloft.net> 1491443200 -0700

nfp: fix potential use after free on xdp prog

We should unregister the net_device first, before we give back
our reference on xdp_prog.  Otherwise xdp_prog may be freed
before .ndo_stop() disabled the datapath.  Found by code inspection.

Fixes: ecd63a0217d5 ("nfp: add XDP support in the driver")
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>