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Index: madwifi-ng-r2756-20071018/ath_rate/minstrel/minstrel.c
===================================================================
--- madwifi-ng-r2756-20071018.orig/ath_rate/minstrel/minstrel.c 2007-10-24 06:20:16.665638998 +0200
+++ madwifi-ng-r2756-20071018/ath_rate/minstrel/minstrel.c 2007-10-24 06:20:18.217727448 +0200
@@ -393,6 +393,9 @@
struct minstrel_node *sn = ATH_NODE_MINSTREL(an);
int rc1, rc2, rc3; /* Index into the rate table, so for example, it is 0..11 */
+ if (sn->num_rates <= 0)
+ return;
+
if (sn->is_sampling) {
sn->is_sampling = 0;
if (sn->rs_sample_rate_slower)
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