tree 3ea517edcaa774dc86f59f34d11699a4ef75a355
parent a5af83925363eb85d467933e3d6ec5a87001eb7c
author WANG Cong <xiyou.wangcong@gmail.com> 1490292211 -0700
committer David S. Miller <davem@davemloft.net> 1490386433 -0700

kcm: return immediately after copy_from_user() failure

There is no reason to continue after a copy_from_user()
failure.

Fixes: ab7ac4eb9832 ("kcm: Kernel Connection Multiplexor module")
Cc: Tom Herbert <tom@herbertland.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>