[src-draft/trunk]: src/sys/dev/usb Must stop the device on detach to abort an...

[Nathanial Sloss <nat%netbsd.org@localhost>]

details:   https://anonhg.NetBSD.org/src-all/rev/70edd3d98781
branches:  trunk
changeset: 377765:70edd3d98781
user:      Nathanial Sloss <nat%netbsd.org@localhost>
date:      Sun Aug 16 10:48:24 2020 +1000

description:
Must stop the device on detach to abort any usb xfers.

diffstat:

 sys/dev/usb/if_urtwn.c |  4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diffs (21 lines):

diff -r 9d89d7376c93 -r 70edd3d98781 sys/dev/usb/if_urtwn.c
--- a/sys/dev/usb/if_urtwn.c    Sun Aug 16 10:07:55 2020 +1000
+++ b/sys/dev/usb/if_urtwn.c    Sun Aug 16 10:48:24 2020 +1000
@@ -630,6 +630,7 @@ urtwn_detach(device_t self, int flags)
 {
        struct urtwn_softc *sc = device_private(self);
        struct ieee80211com *ic = &sc->sc_ic;
+       struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
        int s;
 
        DPRINTFN(DBG_FN, ("%s: %s\n", device_xname(sc->sc_dev), __func__));
@@ -640,6 +641,9 @@ urtwn_detach(device_t self, int flags)
 
        sc->sc_dying = 1;
 
+       if (vap != NULL)
+               urtwn_stop(vap->iv_ifp, 1);
+
        callout_halt(&sc->sc_scan_to, NULL);
        callout_halt(&sc->sc_calib_to, NULL);