commit 8f3458c033ee4261a5c8060007f15ad1e724d60b
Author: Jiri Slaby <ku@bellona.localdomain>
Date:   Sat Jul 28 22:13:47 2007 +0200

    don't copy nonvalid rates

diff --git a/ath.c b/ath.c
index 28f4a7c..c455ca3 100644
--- a/ath.c
+++ b/ath.c
@@ -1738,18 +1738,23 @@ static inline short ath_ieee2mhz(short chan)
 static unsigned int ath_copy_rates(struct ieee80211_rate *rates,
 		const struct ath5k_rate_table *rt, unsigned int max)
 {
-	unsigned int i;
+	unsigned int i, count;
 
 	if (rt == NULL)
 		return 0;
 
-	for (i = 0; i < rt->rate_count && max > 0; i++, rates++, max--) {
+	for (i = 0, count = 0; i < rt->rate_count && max > 0; i++) {
+		if (!rt->rates[i].valid)
+			continue;
 		rates->rate = rt->rates[i].rate_kbps / 100;
 		rates->val = rt->rates[i].rate_code;
 		rates->flags = rt->rates[i].modulation;
+		rates++;
+		count++;
+		max--;
 	}
 
-	return i;
+	return count;
 }
 
 static unsigned int ath_copy_channels(struct ath_hw *ah,