releases/2.6.33.2/net-add-__must_check-to-sk_add_backlog.patch

   1 From 256010274c8212e7dbe26bbf2a84d8705733d50e Mon Sep 17 00:00:00 2001
   2 From: Zhu Yi <yi.zhu@intel.com>
   3 Date: Sun, 7 Mar 2010 16:21:39 +0000
   4 Subject: net: add __must_check to sk_add_backlog
   5
   6 From: Zhu Yi <yi.zhu@intel.com>
   7
   8 [ Upstream commit 4045635318538d3ddd2007720412fdc4b08f6a62 ]
   9
  10 Add the "__must_check" tag to sk_add_backlog() so that any failure to
  11 check and drop packets will be warned about.
  12
  13 Signed-off-by: Zhu Yi <yi.zhu@intel.com>
  14 Signed-off-by: David S. Miller <davem@davemloft.net>
  15 Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
  16
  17 ---
  18  include/net/sock.h |    2 +-
  19  1 file changed, 1 insertion(+), 1 deletion(-)
  20
  21 --- a/include/net/sock.h
  22 +++ b/include/net/sock.h
  23 @@ -589,7 +589,7 @@ static inline void __sk_add_backlog(stru
  24  }
  25
  26  /* The per-socket spinlock must be held here. */
  27 -static inline int sk_add_backlog(struct sock *sk, struct sk_buff *skb)
  28 +static inline __must_check int sk_add_backlog(struct sock *sk, struct sk_buff *skb)
  29  {
  30         if (sk->sk_backlog.len >= max(sk->sk_backlog.limit, sk->sk_rcvbuf << 1))
  31                 return -ENOBUFS;