net, bridge: convert net_bridge_vlan.refcnt from atomic_t to refcount_t
authorReshetova, Elena <elena.reshetova@intel.com>
Tue, 4 Jul 2017 12:53:05 +0000 (15:53 +0300)
committerDavid S. Miller <davem@davemloft.net>
Tue, 4 Jul 2017 21:35:16 +0000 (22:35 +0100)
commit2512775985969a3dadb09670701f0c16499ee784
treef4da992f7040901e2ce7d7ea26e5e32b94dac686
parente00bdbefab731638c0764cf1b9b7398bfbf2bd99
net, bridge: convert net_bridge_vlan.refcnt from atomic_t to refcount_t

refcount_t type and corresponding API should be
used instead of atomic_t when the variable is used as
a reference counter. This allows to avoid accidental
refcounter overflows that might lead to use-after-free
situations.

Signed-off-by: Elena Reshetova <elena.reshetova@intel.com>
Signed-off-by: Hans Liljestrand <ishkamiel@gmail.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: David Windsor <dwindsor@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/bridge/br_private.h
net/bridge/br_vlan.c