From ecf9cbe98585052773bc97d09db1d7f30ab5f516 Mon Sep 17 00:00:00 2001
From: Jonathan Corbet <corbet@lwn.net>
Date: Fri, 16 May 2008 14:25:20 -0600
Subject: [PATCH] --- yaml --- r: 100319 b: refs/heads/master c:
 b5b4aa67da65aeb58718e0a39158b293873ac572 h: refs/heads/master i:   100317:
 7613ae4ef517082073232dfb875e1f6ace9c68ef   100315:
 d8a30597475e285a969d181c85a359470104042f   100311:
 50cac07354f29fdd9ae42b9d0c66fedb2e66a8aa   100303:
 86a848d50f2528da86a821672f027e7390e61ca5   100287:
 4c3e5c4ea9938fde7eb120ee67b454e1c0cb0b3a v: v3

---
 [refs]                         | 2 +-
 trunk/drivers/usb/core/devio.c | 2 ++
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index cc9fe1b8accf..db9fe337c8bb 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 1af46fd72d6c18c1d96ce7f3491b841055e9dcfd
+refs/heads/master: b5b4aa67da65aeb58718e0a39158b293873ac572
diff --git a/trunk/drivers/usb/core/devio.c b/trunk/drivers/usb/core/devio.c
index de17738f3acb..9218cca21043 100644
--- a/trunk/drivers/usb/core/devio.c
+++ b/trunk/drivers/usb/core/devio.c
@@ -565,6 +565,7 @@ static int usbdev_open(struct inode *inode, struct file *file)
 	struct dev_state *ps;
 	int ret;
 
+	lock_kernel();
 	/* Protect against simultaneous removal or release */
 	mutex_lock(&usbfs_mutex);
 
@@ -611,6 +612,7 @@ static int usbdev_open(struct inode *inode, struct file *file)
 	if (ret)
 		kfree(ps);
 	mutex_unlock(&usbfs_mutex);
+	unlock_kernel();
 	return ret;
 }