From: Ron Rindjunsky <ron.rindjunsky@intel.com>
Date: Wed, 23 Apr 2008 10:45:12 +0000 (+0300)
Subject: mac80211: fix use before check of Qdisc length
X-Git-Tag: v2.6.26-rc1~1088^2~4^2~5
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0da926f05748d273e7b2b673b0de21629ae9acdd;p=linux-2.6

mac80211: fix use before check of Qdisc length

This patch fixes use of Qdisc length in requeue function, before we checked
the reference is valid. (Adrian Bunk's catch)

Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---

diff --git a/net/mac80211/wme.c b/net/mac80211/wme.c
index 4e94e4026e..64faa3dc48 100644
--- a/net/mac80211/wme.c
+++ b/net/mac80211/wme.c
@@ -709,7 +709,7 @@ void ieee80211_requeue(struct ieee80211_local *local, int queue)
 	struct ieee80211_sched_data *q = qdisc_priv(root_qd);
 	struct Qdisc *qdisc = q->queues[queue];
 	struct sk_buff *skb = NULL;
-	u32 len = qdisc->q.qlen;
+	u32 len;
 
 	if (!qdisc || !qdisc->dequeue)
 		return;