linux-kernel - [2.6 patch] net/mac80211/rx.c: fix off-by-one

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Message-ID: <20080423095128.GY28933@cs181133002.pp.htv.fi>
Date:	Wed, 23 Apr 2008 12:51:28 +0300
From:	Adrian Bunk <bunk@...nel.org>
To:	Johannes Berg <johannes@...solutions.net>,
	"John W. Linville" <linville@...driver.com>
Cc:	linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [2.6 patch] net/mac80211/rx.c: fix off-by-one

This patch fixes an off-by-one in net/mac80211/rx.c introduced by
commit 8318d78a44d49ac1edf2bdec7299de3617c4232e
(cfg80211 API for channels/bitrates, mac80211 and driver conversion)
and spotted by the Coverity checker.

Signed-off-by: Adrian Bunk <bunk@...nel.org>

---
--- linux-2.6/net/mac80211/rx.c.old	2008-04-22 02:23:40.000000000 +0300
+++ linux-2.6/net/mac80211/rx.c	2008-04-22 02:24:23.000000000 +0300
@@ -2168,11 +2168,11 @@ void __ieee80211_rx(struct ieee80211_hw 
 	u32 pkt_load;
 	struct ieee80211_rate *rate = NULL;
 	struct ieee80211_supported_band *sband;
 
 	if (status->band < 0 ||
-	    status->band > IEEE80211_NUM_BANDS) {
+	    status->band >= IEEE80211_NUM_BANDS) {
 		WARN_ON(1);
 		return;
 	}
 
 	sband = local->hw.wiphy->bands[status->band];

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