From 03286b3576aeea97a28f8d06375ea157c59216de Mon Sep 17 00:00:00 2001 From: Weongyo Jeong Date: Tue, 29 Jun 2010 21:56:42 +0000 Subject: [PATCH] Initializes the ratectl for a node when the state is changed to RUN. This prevents a kernel fault by dividing with zero because the initial rate was 0 and didn't be initialized. Tested by: Warren Block MFC after: 3 days --- sys/dev/bwi/if_bwi.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/sys/dev/bwi/if_bwi.c b/sys/dev/bwi/if_bwi.c index 91145e4bb66..5501c13f7b7 100644 --- a/sys/dev/bwi/if_bwi.c +++ b/sys/dev/bwi/if_bwi.c @@ -1769,6 +1769,7 @@ static int bwi_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) { struct bwi_vap *bvp = BWI_VAP(vap); + const struct ieee80211_txparam *tp; struct ieee80211com *ic= vap->iv_ic; struct ifnet *ifp = ic->ic_ifp; enum ieee80211_state ostate = vap->iv_state; @@ -1822,6 +1823,11 @@ bwi_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) sc->sc_txpwrcb_type = BWI_TXPWR_CALIB; #endif + /* Initializes ratectl for a node. */ + tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; + if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE) + ieee80211_ratectl_node_init(vap->iv_bss); + callout_reset(&sc->sc_calib_ch, hz, bwi_calibrate, sc); } back: