net, rds: convert rds_ib_device.refcount from atomic_t to refcount_t
authorReshetova, Elena <elena.reshetova@intel.com>
Tue, 4 Jul 2017 12:53:15 +0000 (15:53 +0300)
committerDavid S. Miller <davem@davemloft.net>
Tue, 4 Jul 2017 21:35:17 +0000 (22:35 +0100)
commit50d61ff789d728a9b6624582ce28441dc0bf5b42
treeba696c03f20de2bdac89ee3e3c08a04dab587e24
parent7ff139696d74d0d4917bd259347d00e3a4fcc410
net, rds: convert rds_ib_device.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>
net/rds/ib.c
net/rds/ib.h
net/rds/ib_rdma.c