Fix bounds check in ucc_add_key(); ok anton@

diff --git a/sys/dev/usb/ucc.c b/sys/dev/usb/ucc.c
index aacf7d7..7f08db1 100644 (file)
--- a/sys/dev/usb/ucc.c
+++ b/sys/dev/usb/ucc.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: ucc.c,v 1.33 2022/03/29 16:04:36 anton Exp $  */
+/*     $OpenBSD: ucc.c,v 1.34 2022/08/05 16:59:50 miod Exp $   */
 
 /*
  * Copyright (c) 2021 Anton Lindqvist <anton@openbsd.org>
@@ -1013,7 +1013,7 @@ ucc_add_key(struct ucc_softc *sc, int32_t usage, u_int bit)
        if (ucc_usage_to_sym(usage, &us))
                return 0;
 
-       if (sc->sc_maplen + 2 > sc->sc_mapsiz)
+       if (sc->sc_maplen + 2 >= sc->sc_mapsiz)
                return ENOMEM;
        sc->sc_map[sc->sc_maplen++] = KS_KEYCODE(sc->sc_isarray ? usage : bit);
        sc->sc_map[sc->sc_maplen++] = us->us_key;