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| author |   jsing <jsing@openbsd.org> | 2008-04-03 16:39:54 +0000 |
|---|---|---|
| committer | jsing <jsing@openbsd.org> | 2008-04-03 16:39:54 +0000 |
| commit | f76d16393a00f80551baec024c1d24ea84d82a92 (patch) | |
| tree | 45863d2231dd81154ff7ff998f4f455c3d784961 | |
| parent | openssh-5.0 (diff) | |
| download | wireguard-openbsd-f76d16393a00f80551baec024c1d24ea84d82a92.tar.xz wireguard-openbsd-f76d16393a00f80551baec024c1d24ea84d82a92.zip | |
Ensure that we wrap around to the start of the TXD buffer when incrementing
the TXD pointer beyond the end.
Fixes PR5786.
| -rw-r--r-- | sys/dev/pci/if_lii.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sys/dev/pci/if_lii.c b/sys/dev/pci/if_lii.c index 9b4ae4fe046..df19def4fb0 100644 --- a/sys/dev/pci/if_lii.c +++ b/sys/dev/pci/if_lii.c @@ -1,4 +1,4 @@ -/* $OpenBSD: if_lii.c,v 1.9 2008/03/30 14:17:48 jsing Exp $ */ +/* $OpenBSD: if_lii.c,v 1.10 2008/04/03 16:39:54 jsing Exp $ */ /* * Copyright (c) 2007 The NetBSD Foundation. @@ -728,7 +728,7 @@ atl2_tx_put(struct atl2_softc *sc, struct mbuf *m) } /* Round to a 32-bit boundary */ - sc->sc_txd_cur = (sc->sc_txd_cur + 3) & ~3; + sc->sc_txd_cur = ((sc->sc_txd_cur + 3) & ~3) % AT_TXD_BUFFER_SIZE; if (sc->sc_txd_cur == sc->sc_txd_ack) sc->sc_free_tx_slots = 0; } |