Author: eadler
Date: Thu Mar 1 05:05:08 2018
New Revision: 330159
URL: https://svnweb.freebsd.org/changeset/base/330159
Log:
MFC r308577:
iwm: If firmware load fails during init via iwm_preinit() we bail out
before calling ieee80211_ifattach() so the taskqueue hasn't been
initialized. Don't try to drain it, we'll panic.
Looks like this issue was introduced in r303326.
Modified:
stable/11/sys/dev/iwm/if_iwm.c
Directory Properties:
stable/11/ (props changed)
Modified: stable/11/sys/dev/iwm/if_iwm.c
==============================================================================
--- stable/11/sys/dev/iwm/if_iwm.c Thu Mar 1 05:03:18 2018
(r330158)
+++ stable/11/sys/dev/iwm/if_iwm.c Thu Mar 1 05:05:08 2018
(r330159)
@@ -6172,7 +6172,8 @@ iwm_detach_local(struct iwm_softc *sc, int do_net80211
device_t dev = sc->sc_dev;
int i;
- ieee80211_draintask(&sc->sc_ic, &sc->sc_es_task);
+ if (do_net80211)
+ ieee80211_draintask(&sc->sc_ic, &sc->sc_es_task);
callout_drain(&sc->sc_led_blink_to);
callout_drain(&sc->sc_watchdog_to);
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