From 66a95162d6f493f1f4481d7f0225a1ad87b5db93 Mon Sep 17 00:00:00 2001
From: kib <kib@FreeBSD.org>
Date: Sat, 13 Jul 2013 19:32:50 +0000
Subject: [PATCH] Allow to call clock_gettime() on the clock id for zombie
 process.

Reported by:	Petr Salinger <Petr.Salinger@seznam.cz>
PR:	threads/180496
Sponsored by:	The FreeBSD Foundation
---
 sys/kern/kern_time.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/sys/kern/kern_time.c b/sys/kern/kern_time.c
index b68c949da976..9e0cc0687785 100644
--- a/sys/kern/kern_time.c
+++ b/sys/kern/kern_time.c
@@ -297,14 +297,9 @@ get_cputime(struct thread *td, clockid_t clock_id, struct timespec *ats)
 		PROC_UNLOCK(td2->td_proc);
 	} else {
 		pid = clock_id & CPUCLOCK_ID_MASK;
-		p2 = pfind(pid);
-		if (p2 == NULL)
+		error = pget(pid, PGET_CANSEE, &p2);
+		if (error != 0)
 			return (EINVAL);
-		error = p_cansee(td, p2);
-		if (error) {
-			PROC_UNLOCK(p2);
-			return (EINVAL);
-		}
 		get_process_cputime(p2, ats);
 		PROC_UNLOCK(p2);
 	}