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Fix a panic that it's occurred when NDIS init handler returned a error

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by unknown reasons.   In this case, sc->ifp is still NULL so it will
cause a page fault during calling ndis_detach()
This commit is contained in:
Weongyo Jeong 2008-05-30 07:17:51 +00:00
parent 32e9c9dc71
commit e54b92f37b
1 changed files with 8 additions and 5 deletions
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13
sys/dev/if_ndis/if_ndis.c
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@ -996,15 +996,18 @@ ndis_detach(dev)
sc = device_get_softc(dev);
NDIS_LOCK(sc);
ifp = sc->ifp;
ifp->if_flags &= ~IFF_UP;
if (ifp != NULL)
ifp->if_flags &= ~IFF_UP;
if (device_is_attached(dev)) {
NDIS_UNLOCK(sc);
ndis_stop(sc);
if (sc->ndis_80211)
ieee80211_ifdetach(ifp->if_l2com);
else
ether_ifdetach(ifp);
if (ifp != NULL) {
if (sc->ndis_80211)
ieee80211_ifdetach(ifp->if_l2com);
else
ether_ifdetach(ifp);
}
} else
NDIS_UNLOCK(sc);