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Close a detach race. Make sure all pending

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CCB's get canceled at device detach.

MFC after:	1 week
This commit is contained in:
Hans Petter Selasky 2012-03-01 20:10:54 +00:00
parent 3d876232e5
commit 335dd8f82f
1 changed files with 6 additions and 2 deletions
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8
sys/dev/usb/storage/umass.c
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@ -1056,6 +1056,11 @@ umass_detach(device_t dev)
#if (__FreeBSD_version >= 700037)
mtx_lock(&sc->sc_mtx);
#endif
/* cancel any leftover CCB's */
umass_cancel_ccb(sc);
umass_cam_detach_sim(sc);
#if (__FreeBSD_version >= 700037)
@ -1607,8 +1612,7 @@ umass_command_start(struct umass_softc *sc, uint8_t dir,
if (sc->sc_xfer[sc->sc_last_xfer_index]) {
usbd_transfer_start(sc->sc_xfer[sc->sc_last_xfer_index]);
} else {
ccb->ccb_h.status = CAM_TID_INVALID;
xpt_done(ccb);
umass_cancel_ccb(sc);
}
}