nl80211: fix missing nesting

commit 95a6ccbb46c70cff376684c752831c014c87029d
Author: Johannes Berg <johannes.berg@intel.com>
Date:   Thu Aug 12 15:38:38 2010 +0200

    cfg80211/mac80211: extensible frame processing

introduced a netlink bug that caused parsing errors
in userspace because it forgot to close a nesting,
which would advertise a nesting length of zero to
userspace, which then completely threw off parsing
and led to

	Illegal nla->nla_type == 0

being printed by libnl.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 927ffbd..49f5ca3 100644 (file)
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -636,6 +636,8 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
                        nla_nest_end(msg, nl_ftypes);
                }
 
+               nla_nest_end(msg, nl_ifs);
+
                nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
                if (!nl_ifs)
                        goto nla_put_failure;