From ae76e301315b2f20e3eeeb9f88c917de95fae4f9 Mon Sep 17 00:00:00 2001
From: Konstantin Belousov <kib@FreeBSD.org>
Date: Fri, 20 May 2016 15:32:48 +0000
Subject: [PATCH] Use unsigned type for the loop index to make overflow checks
 effective.

PR:	209661
Reported by:	cturt
Sponsored by:	The FreeBSD Foundation
MFC after:	3 days
---
 sys/amd64/amd64/sys_machdep.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sys/amd64/amd64/sys_machdep.c b/sys/amd64/amd64/sys_machdep.c
index 7f6c50e71f3..7a1df6bcf97 100644
--- a/sys/amd64/amd64/sys_machdep.c
+++ b/sys/amd64/amd64/sys_machdep.c
@@ -333,11 +333,12 @@ amd64_set_ioperm(td, uap)
 	struct thread *td;
 	struct i386_ioperm_args *uap;
 {
-	int i, error;
 	char *iomap;
 	struct amd64tss *tssp;
 	struct system_segment_descriptor *tss_sd;
 	struct pcb *pcb;
+	u_int i;
+	int error;
 
 	if ((error = priv_check(td, PRIV_IO)) != 0)
 		return (error);