From 86266452f80545285c14e20a8024f79c4fb88a86 Mon Sep 17 00:00:00 2001
From: Oliver Neukum <oliver@neukum.org>
Date: Wed, 13 Jan 2010 15:33:15 +0100
Subject: USB: Push BKL on open down into the drivers

Straightforward push into the drivers to allow
auditing individual drivers separately

Signed-off-by: Oliver Neukum <oliver@neukum.org>
Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Cc: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 drivers/usb/image/mdc800.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'drivers/usb/image')

diff --git a/drivers/usb/image/mdc800.c b/drivers/usb/image/mdc800.c
index e192e8f7c560..dce4f7b69ac3 100644
--- a/drivers/usb/image/mdc800.c
+++ b/drivers/usb/image/mdc800.c
@@ -96,6 +96,7 @@
 #include <linux/module.h>
 #include <linux/wait.h>
 #include <linux/mutex.h>
+#include <linux/smp_lock.h>
 
 #include <linux/usb.h>
 #include <linux/fs.h>
@@ -622,6 +623,7 @@ static int mdc800_device_open (struct inode* inode, struct file *file)
 	int retval=0;
 	int errn=0;
 
+	lock_kernel();
 	mutex_lock(&mdc800->io_lock);
 	
 	if (mdc800->state == NOT_CONNECTED)
@@ -660,6 +662,7 @@ static int mdc800_device_open (struct inode* inode, struct file *file)
 
 error_out:
 	mutex_unlock(&mdc800->io_lock);
+	unlock_kernel();
 	return errn;
 }
 
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