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authorDavid S. Miller <davem@davemloft.net>2015-08-18 00:03:10 +0300
committerDavid S. Miller <davem@davemloft.net>2015-08-18 00:03:10 +0300
commita27cc68b9bb25f16b37f9800e977927a2275e7e6 (patch)
tree5e5bb228db077bdfe28382de79578bfd52bdf48d /net
parent2902bc66fa7a6d959e033e5358fd836e2839b5db (diff)
parentf5eeb5fa191fd7b634cbc4883ac58f3b2184dbc5 (diff)
downloadlinux-a27cc68b9bb25f16b37f9800e977927a2275e7e6.tar.xz
Merge tag 'mac80211-for-davem-2015-08-14' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211
Johannes Berg says: ==================== We have a single bugfix for an invalid memory read. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/mac80211/rc80211_minstrel.c11
1 files changed, 6 insertions, 5 deletions
diff --git a/net/mac80211/rc80211_minstrel.c b/net/mac80211/rc80211_minstrel.c
index 247552a7f6c2..3ece7d1034c8 100644
--- a/net/mac80211/rc80211_minstrel.c
+++ b/net/mac80211/rc80211_minstrel.c
@@ -92,14 +92,15 @@ int minstrel_get_tp_avg(struct minstrel_rate *mr, int prob_ewma)
static inline void
minstrel_sort_best_tp_rates(struct minstrel_sta_info *mi, int i, u8 *tp_list)
{
- int j = MAX_THR_RATES;
- struct minstrel_rate_stats *tmp_mrs = &mi->r[j - 1].stats;
+ int j;
+ struct minstrel_rate_stats *tmp_mrs;
struct minstrel_rate_stats *cur_mrs = &mi->r[i].stats;
- while (j > 0 && (minstrel_get_tp_avg(&mi->r[i], cur_mrs->prob_ewma) >
- minstrel_get_tp_avg(&mi->r[tp_list[j - 1]], tmp_mrs->prob_ewma))) {
- j--;
+ for (j = MAX_THR_RATES; j > 0; --j) {
tmp_mrs = &mi->r[tp_list[j - 1]].stats;
+ if (minstrel_get_tp_avg(&mi->r[i], cur_mrs->prob_ewma) <=
+ minstrel_get_tp_avg(&mi->r[tp_list[j - 1]], tmp_mrs->prob_ewma))
+ break;
}
if (j < MAX_THR_RATES - 1)