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In bwi_newstate, only zero the bssid when we stop a STA. And only

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when we've not stopped the card.  It hangs the system when we touch
the CSR after bwistop.

This fixes the hanging on kldunload.
This commit is contained in:
imp 2009-06-02 16:48:10 +00:00
parent 0010c8697b
commit 2f4849a20f
1 changed files with 20 additions and 6 deletions
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26
sys/dev/bwi/if_bwi.c
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@ -1771,10 +1771,12 @@ static int
bwi_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
{
struct bwi_vap *bvp = BWI_VAP(vap);
struct ifnet *ifp = vap->iv_ic->ic_ifp;
struct ieee80211com *ic= vap->iv_ic;
struct ifnet *ifp = ic->ic_ifp;
enum ieee80211_state ostate = vap->iv_state;
struct bwi_softc *sc = ifp->if_softc;
struct bwi_mac *mac;
struct ieee80211_node *ni;
struct ieee80211_node *ni = vap->iv_bss;
int error;
BWI_LOCK(sc);
@ -1790,11 +1792,25 @@ bwi_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
if (error != 0)
goto back;
/*
* Clear the BSSID when we stop a STA
*/
if (vap->iv_opmode == IEEE80211_M_STA) {
if (ostate == IEEE80211_S_RUN && nstate != IEEE80211_S_RUN) {
/*
* Clear out the BSSID. If we reassociate to
* the same AP, this will reinialize things
* correctly...
*/
if (ic->ic_opmode == IEEE80211_M_STA &&
!(sc->sc_flags & BWI_F_STOP))
bwi_set_bssid(sc, bwi_zero_addr);
}
}
if (vap->iv_opmode == IEEE80211_M_MONITOR) {
/* Nothing to do */
} else if (nstate == IEEE80211_S_RUN) {
ni = vap->iv_bss;
bwi_set_bssid(sc, vap->iv_bss->ni_bssid);
KASSERT(sc->sc_cur_regwin->rw_type == BWI_REGWIN_T_MAC,
@ -1814,8 +1830,6 @@ bwi_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
}
callout_reset(&sc->sc_calib_ch, hz, bwi_calibrate, sc);
} else {
bwi_set_bssid(sc, bwi_zero_addr);
}
back:
BWI_UNLOCK(sc);