From: Maxim Uvarov <maxim.uvarov@oracle.com>
Date: Fri, 23 Mar 2012 22:09:08 +0000 (-0700)
Subject: cdc-acm.c: fix stable merge
X-Git-Tag: v2.6.39-400.9.0~565^2~3
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=55d40ceb18c31368f1e06b3eac134542f7a359e0;p=users%2Fjedix%2Flinux-maple.git

cdc-acm.c: fix stable merge

Signed-off-by: Maxim Uvarov <maxim.uvarov@oracle.com>
---

diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index a76e715d9020..158f63121434 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -563,7 +563,6 @@ static void acm_tty_hangup(struct tty_struct *tty)
 		goto out;
 
 	tty_port_hangup(&acm->port);
-	mutex_lock(&open_mutex);
 	acm_port_down(acm);
 
 out: