From 46c2cb8cae87c903caba67eb8afc0f8985832956 Mon Sep 17 00:00:00 2001
From: Joe Gunn <armadefuego@yahoo.com>
Date: Fri, 25 Feb 2011 02:08:49 -0800
Subject: orinoco: Drop scan results with unknown channels

If the frequency can not be mapped to a channel structure log it and drop it.

Signed-off-by: Joseph J. Gunn <armadefuego@yahoo.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/orinoco/scan.c b/drivers/net/wireless/orinoco/scan.c
index 86cb54c..e99ca1c 100644
--- a/drivers/net/wireless/orinoco/scan.c
+++ b/drivers/net/wireless/orinoco/scan.c
@@ -111,6 +111,11 @@ static void orinoco_add_hostscan_result(struct orinoco_private *priv,
 
 	freq = ieee80211_dsss_chan_to_freq(le16_to_cpu(bss->a.channel));
 	channel = ieee80211_get_channel(wiphy, freq);
+	if (!channel) {
+		printk(KERN_DEBUG "Invalid channel designation %04X(%04X)",
+			bss->a.channel, freq);
+		return;	/* Then ignore it for now */
+	}
 	timestamp = 0;
 	capability = le16_to_cpu(bss->a.capabilities);
 	beacon_interval = le16_to_cpu(bss->a.beacon_interv);
-- 
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