SEO

I got kernel panics on detaching from cu(1) with wrong speed.
ucomstart() tried to usbd_setup_xfern on already free'd sc->sc_oxfer


Index: ucom.c
================================================== =================
RCS file: /cvs/src/sys/dev/usb/ucom.c,v
retrieving revision 1.31
diff -u -r1.31 ucom.c
--- ucom.c 2006/08/18 02:54:11 1.31
+++ ucom.c 2006/08/22 18:55:45
@@ -545,11 +545,11 @@

(*LINESW(tp, l_close))(tp, flag);
s = spltty();
- ucom_cleanup(sc);
CLR(tp->t_state, TS_BUSY | TS_FLUSH);
sc->sc_cua = 0;
splx(s);
ttyclose(tp);
+ ucom_cleanup(sc);

if (sc->sc_methods->ucom_close != NULL)
sc->sc_methods->ucom_close(sc->sc_parent, sc->sc_portno);