From 9fc2bcf662f5477c92669d634f59d849d18a27db Mon Sep 17 00:00:00 2001
From: Jonathan Lemon <jlemon@FreeBSD.org>
Date: Tue, 31 Aug 1999 16:34:20 +0000
Subject: [PATCH] Simplify, and return an error if the user attempts to set a
 TCP time value which results in < 1 tick.

Suggested by: 	bde
---
 sys/netinet/tcp_timer.c | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/sys/netinet/tcp_timer.c b/sys/netinet/tcp_timer.c
index 74752b83d3ab..591fb18177a1 100644
--- a/sys/netinet/tcp_timer.c
+++ b/sys/netinet/tcp_timer.c
@@ -71,17 +71,13 @@ sysctl_msec_to_ticks SYSCTL_HANDLER_ARGS
 	tt = *(int *)oidp->oid_arg1;
 	s = tt * 1000 / hz;
 
-	error = SYSCTL_OUT(req, &s, sizeof(int));
+	error = sysctl_handle_int(oidp, &s, 0, req);
 	if (error || !req->newptr)
 		return (error);
 
-	error = SYSCTL_IN(req, &s, sizeof(int));
-	if (error)
-		return (error);
-
 	tt = s * hz / 1000;
-	if (tt == 0 && s > 0)
-		tt++;
+	if (tt < 1)
+		return (EINVAL);
 
 	*(int *)oidp->oid_arg1 = tt;
         return (0);