From 9a1d0cf68f99ec2d51b91ef09e40d3bdab8f2bc3 Mon Sep 17 00:00:00 2001
From: Peter Holm <pho@FreeBSD.org>
Date: Sat, 3 Dec 2011 12:35:13 +0000
Subject: [PATCH] Use umtx_copyin_timeout() to copy and check timeout
 parameter.

In collaboration with:	kib
MFC after:	1 week
---
 sys/kern/kern_thr.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/sys/kern/kern_thr.c b/sys/kern/kern_thr.c
index 881fd55053d6..5bcef043222c 100644
--- a/sys/kern/kern_thr.c
+++ b/sys/kern/kern_thr.c
@@ -450,8 +450,7 @@ sys_thr_suspend(struct thread *td, struct thr_suspend_args *uap)
 
 	tsp = NULL;
 	if (uap->timeout != NULL) {
-		error = copyin((const void *)uap->timeout, (void *)&ts,
-		    sizeof(struct timespec));
+		error = umtx_copyin_timeout(uap->timeout, &ts);
 		if (error != 0)
 			return (error);
 		tsp = &ts;
@@ -474,9 +473,6 @@ kern_thr_suspend(struct thread *td, struct timespec *tsp)
 	}
 
 	if (tsp != NULL) {
-		if (tsp->tv_sec < 0 || tsp->tv_nsec < 0 ||
-		    tsp->tv_nsec > 1000000000)
-			return (EINVAL);
 		if (tsp->tv_sec == 0 && tsp->tv_nsec == 0)
 			error = EWOULDBLOCK;
 		else {