fix a small race condition in the madwifi queue handling
[openwrt.git] / package / madwifi / patches / 111-minstrel_crash.patch
1 Index: madwifi-dfs-r3053/ath_rate/minstrel/minstrel.c
2 ===================================================================
3 --- madwifi-dfs-r3053.orig/ath_rate/minstrel/minstrel.c 2007-12-13 05:25:10.690234670 +0100
4 +++ madwifi-dfs-r3053/ath_rate/minstrel/minstrel.c      2007-12-13 05:25:12.006309667 +0100
5 @@ -393,6 +393,9 @@
6                 struct minstrel_node *sn = ATH_NODE_MINSTREL(an);
7                 int rc1, rc2, rc3;         /* Index into the rate table, so for example, it is  0..11 */
8  
9 +               if (sn->num_rates <= 0)
10 +                       return;
11 +
12                 if (sn->is_sampling) {
13                         sn->is_sampling = 0;
14                         if (sn->rs_sample_rate_slower)