net, netrom: convert nr_node.refcount from atomic_t to refcount_t
authorReshetova, Elena <elena.reshetova@intel.com>
Tue, 4 Jul 2017 12:53:12 +0000 (15:53 +0300)
committerDavid S. Miller <davem@davemloft.net>
Tue, 4 Jul 2017 21:35:17 +0000 (22:35 +0100)
commit156be7edc85b4aeb0f31029f4d60c3de0c997f27
treefc2372b7477504eebe7a436692269d200390f3b8
parentaf4207494d9c8e089df80e9c1ceac44f2b3e7b53
net, netrom: convert nr_node.refcount 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>
include/net/netrom.h
net/netrom/nr_route.c