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Code Issues Releases Activity

Drop the ipw softc lock before calling back into net80211, fixing a

Browse Source 
LOR/deadlock.

Tested by:   Denis Shaposhnikov <dsh_AT_vlink.ru>, le@
LOR id:      205
MFC in:      3 days
This commit is contained in:
Lukas Ertl 2007-03-24 18:53:33 +00:00
parent 5a146d5125
commit 1069807f7e
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=167868
1 changed files with 2 additions and 0 deletions
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2
sys/dev/ipw/if_ipw.c
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@ -1065,6 +1065,7 @@ ipw_data_intr(struct ipw_softc *sc, struct ipw_status *status,
ipw_fix_channel(ic, m);
wh = mtod(m, struct ieee80211_frame *);
mtx_unlock(&sc->sc_mtx);
ni = ieee80211_find_rxnode(ic, (struct ieee80211_frame_min *)wh);
/* send the frame to the 802.11 layer */
@ -1072,6 +1073,7 @@ ipw_data_intr(struct ipw_softc *sc, struct ipw_status *status,
/* node is no longer needed */
ieee80211_free_node(ni);
mtx_lock(&sc->sc_mtx);
bus_dmamap_sync(sc->rbd_dmat, sc->rbd_map, BUS_DMASYNC_PREWRITE);
}