From cf29433090d8399bbdf285f58209efca384d1641 Mon Sep 17 00:00:00 2001
From: Kyle Evans <kevans@FreeBSD.org>
Date: Fri, 29 Nov 2019 03:56:01 +0000
Subject: [PATCH] tty_pts: don't rely on tty header pollution for sys/mutex.h

tty_pts.c relies on sys/tty.h for sys/mutex.h. Include it directly instead
of relying on this pollution to ease the diff for anyone that wants to try
converting the tty lock to anything other than a mutex.
---
 sys/kern/tty_pts.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sys/kern/tty_pts.c b/sys/kern/tty_pts.c
index b8edca0d91a..dbbf35cf1a1 100644
--- a/sys/kern/tty_pts.c
+++ b/sys/kern/tty_pts.c
@@ -50,6 +50,7 @@ __FBSDID("$FreeBSD$");
 #include <sys/kernel.h>
 #include <sys/limits.h>
 #include <sys/malloc.h>
+#include <sys/mutex.h>
 #include <sys/poll.h>
 #include <sys/proc.h>
 #include <sys/racct.h>