-diff -urN madwifi-ng-r2377-20070526.old/ath_rate/minstrel/minstrel.c madwifi-ng-r2377-20070526.dev/ath_rate/minstrel/minstrel.c
---- madwifi-ng-r2377-20070526.old/ath_rate/minstrel/minstrel.c 2007-05-21 19:33:26.000000000 +0200
-+++ madwifi-ng-r2377-20070526.dev/ath_rate/minstrel/minstrel.c 2007-05-26 18:51:08.575783824 +0200
+Index: madwifi-ng-r2568-20070710/ath_rate/minstrel/minstrel.c
+===================================================================
+--- madwifi-ng-r2568-20070710.orig/ath_rate/minstrel/minstrel.c 2007-07-23 01:48:38.542176563 +0200
++++ madwifi-ng-r2568-20070710/ath_rate/minstrel/minstrel.c 2007-07-23 01:48:40.974315165 +0200
@@ -388,6 +388,9 @@
+ struct minstrel_node *sn = ATH_NODE_MINSTREL(an);
int rc1, rc2, rc3; /* Index into the rate table, so for example, it is 0..11 */
- int rixc1, rixc2, rixc3; /* The actual bit rate used */
+ if (sn->num_rates <= 0)
+ return;
if (sn->is_sampling) {
rc1 = sn->max_tp_rate;
sn->is_sampling = 0;
-