Author: avos
Date: Sun Sep 25 19:13:07 2016
New Revision: 306320
URL: https://svnweb.freebsd.org/changeset/base/306320
Log:
rsu: do not restart calibration task when going out of RUN state.
Clear 'sc_calibrating' flag and stop calibration task when interface
is not associated; this fixes possible panic after detach.
Reported and tested by: hselasky
Reviewed by: adrian
MFC after: 6 days
Modified:
head/sys/dev/usb/wlan/if_rsu.c
Modified: head/sys/dev/usb/wlan/if_rsu.c
==============================================================================
--- head/sys/dev/usb/wlan/if_rsu.c Sun Sep 25 18:39:24 2016
(r306319)
+++ head/sys/dev/usb/wlan/if_rsu.c Sun Sep 25 19:13:07 2016
(r306320)
@@ -1270,9 +1270,12 @@ rsu_newstate(struct ieee80211vap *vap, e
default:
break;
}
- sc->sc_calibrating = 1;
- /* Start periodic calibration. */
- taskqueue_enqueue_timeout(taskqueue_thread, &sc->calib_task, hz);
+ if (startcal != 0) {
+ sc->sc_calibrating = 1;
+ /* Start periodic calibration. */
+ taskqueue_enqueue_timeout(taskqueue_thread, &sc->calib_task,
+ hz);
+ }
RSU_UNLOCK(sc);
IEEE80211_LOCK(ic);
return (uvp->newstate(vap, nstate, arg));
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