From 7562b35b234b0c219cd2153547262aed851aedbd Mon Sep 17 00:00:00 2001
From: dougm <dougm@FreeBSD.org>
Date: Mon, 10 Jun 2019 22:06:40 +0000
Subject: [PATCH] r348879 introduced a wrong-way comparison that broke mmap.
 This change rights that comparison.

Reported by: pho
Approved by: markj (mentor)
MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D20595
---
 sys/vm/vm_mmap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sys/vm/vm_mmap.c b/sys/vm/vm_mmap.c
index 4b4382e875e..cd483527af7 100644
--- a/sys/vm/vm_mmap.c
+++ b/sys/vm/vm_mmap.c
@@ -259,7 +259,7 @@ kern_mmap(struct thread *td, uintptr_t addr0, size_t len, int prot, int flags,
 	size = len + pageoff;			/* low end... */
 	size = round_page(size);		/* hi end */
 	/* Check for rounding up to zero. */
-	if (len < size)
+	if (len > size)
 		return (ENOMEM);
 
 	/* Ensure alignment is at least a page and fits in a pointer. */
-- 
2.45.0