diff options
| author | yongari <yongari@FreeBSD.org> | 2008-09-30 04:52:30 +0000 |
|---|---|---|
| committer | yongari <yongari@FreeBSD.org> | 2008-09-30 04:52:30 +0000 |
| commit | 8468f28e4d50d828c26031aaa0ae583d1e74743d (patch) | |
| tree | 8a8dc42ad71c5650f5a902cec0c91999a04e3f88 /sys/dev/msk | |
| parent | b708fede3f331ec2aef186b4eab3eb9706e90b6b (diff) | |
| download | FreeBSD-src-8468f28e4d50d828c26031aaa0ae583d1e74743d.zip FreeBSD-src-8468f28e4d50d828c26031aaa0ae583d1e74743d.tar.gz | |
If mbuf is not writable get a writable copy before invoking
m_pullup(9).
Tested by: Garrett Cooper < yanefbsd <at> gmail dot com >
Diffstat (limited to 'sys/dev/msk')
| -rw-r--r-- | sys/dev/msk/if_msk.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/sys/dev/msk/if_msk.c b/sys/dev/msk/if_msk.c index cd0512e..cccabcf 100644 --- a/sys/dev/msk/if_msk.c +++ b/sys/dev/msk/if_msk.c @@ -2559,7 +2559,16 @@ msk_encap(struct msk_if_softc *sc_if, struct mbuf **m_head) struct ip *ip; struct tcphdr *tcp; - /* TODO check for M_WRITABLE(m) */ + if (M_WRITABLE(m) == 0) { + /* Get a writable copy. */ + m = m_dup(*m_head, M_DONTWAIT); + m_freem(*m_head); + if (m == NULL) { + *m_head = NULL; + return (ENOBUFS); + } + *m_head = m; + } offset = sizeof(struct ether_header); m = m_pullup(m, offset); |
