From 29108a1710fdcfeaeef7c8b3e0061ce905ee652f Mon Sep 17 00:00:00 2001
From: Alan Cox <alan@linux.intel.com>
Date: Mon, 30 Nov 2009 13:18:51 +0000
Subject: [PATCH] --- yaml --- r: 175365 b: refs/heads/master c:
 36ba782e9674cdc29ec7003757df0b375e99fa96 h: refs/heads/master i:   175363:
 a7514e14426cb283334a4b09a4cda4fae4423b58 v: v3

---
 [refs]                      | 2 +-
 trunk/drivers/char/tty_io.c | 3 +++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index bc52896ae665..5fa65868fef2 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 5ec93d1154fd1e269162398f8e70efc7e004485d
+refs/heads/master: 36ba782e9674cdc29ec7003757df0b375e99fa96
diff --git a/trunk/drivers/char/tty_io.c b/trunk/drivers/char/tty_io.c
index a19fef2093f1..684f0e0b175e 100644
--- a/trunk/drivers/char/tty_io.c
+++ b/trunk/drivers/char/tty_io.c
@@ -516,6 +516,8 @@ static void do_tty_hangup(struct work_struct *work)
 	/* inuse_filps is protected by the single kernel lock */
 	lock_kernel();
 	check_tty_count(tty, "do_tty_hangup");
+	unlock_kernel();
+
 	file_list_lock();
 	/* This breaks for file handles being sent over AF_UNIX sockets ? */
 	list_for_each_entry(filp, &tty->tty_files, f_u.fu_list) {
@@ -529,6 +531,7 @@ static void do_tty_hangup(struct work_struct *work)
 	}
 	file_list_unlock();
 
+	lock_kernel();
 	tty_ldisc_hangup(tty);
 
 	read_lock(&tasklist_lock);