diff options
| -rw-r--r-- | sys/kern/uipc_usrreq.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/sys/kern/uipc_usrreq.c b/sys/kern/uipc_usrreq.c index 4bad386..3a34f58 100644 --- a/sys/kern/uipc_usrreq.c +++ b/sys/kern/uipc_usrreq.c @@ -816,7 +816,7 @@ uipc_send(struct socket *so, int flags, struct mbuf *m, struct sockaddr *nam, struct unpcb *unp, *unp2; struct socket *so2; u_int mbcnt_delta, sbcc; - u_long newhiwat; + u_int newhiwat; int error = 0; unp = sotounpcb(so); @@ -974,7 +974,10 @@ uipc_send(struct socket *so, int flags, struct mbuf *m, struct sockaddr *nam, sorwakeup_locked(so2); SOCKBUF_LOCK(&so->so_snd); - newhiwat = so->so_snd.sb_hiwat - (sbcc - unp2->unp_cc); + if ((int)so->so_snd.sb_hiwat >= (int)(sbcc - unp2->unp_cc)) + newhiwat = so->so_snd.sb_hiwat - (sbcc - unp2->unp_cc); + else + newhiwat = 0; (void)chgsbsize(so->so_cred->cr_uidinfo, &so->so_snd.sb_hiwat, newhiwat, RLIM_INFINITY); so->so_snd.sb_mbmax -= mbcnt_delta; |
