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-rw-r--r--drivers/net/wireless/ath/ath9k/beacon.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath9k/beacon.c b/drivers/net/wireless/ath/ath9k/beacon.c
index 0c67ed2e83c..3639a2e6987 100644
--- a/drivers/net/wireless/ath/ath9k/beacon.c
+++ b/drivers/net/wireless/ath/ath9k/beacon.c
@@ -674,6 +674,14 @@ static void ath_beacon_config_adhoc(struct ath_softc *sc,
intval = conf->beacon_interval & ATH9K_BEACON_PERIOD;
+ /*
+ * It looks like mac80211 may end up using beacon interval of zero in
+ * some cases (at least for mesh point). Avoid getting into an
+ * infinite loop by using a bit safer value instead..
+ */
+ if (intval == 0)
+ intval = 100;
+
/* Pull nexttbtt forward to reflect the current TSF */
nexttbtt = TSF_TO_TU(sc->beacon.bc_tstamp >> 32, sc->beacon.bc_tstamp);