From 75bd2ef1457998791cfc89cd59927574488fc22a Mon Sep 17 00:00:00 2001
From: Jonathan Corbet <corbet@lwn.net>
Date: Thu, 15 May 2008 09:09:23 -0600
Subject: [PATCH] bsg: cdev lock_kernel() pushdown

Push the cdev lock_kernel call into bsg_open().

Signed-off-by: Jonathan Corbet <corbet@lwn.net>
---
 block/bsg.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/block/bsg.c b/block/bsg.c
index f0b7cd34321..dbe3ffd505c 100644
--- a/block/bsg.c
+++ b/block/bsg.c
@@ -19,6 +19,7 @@
 #include <linux/uio.h>
 #include <linux/idr.h>
 #include <linux/bsg.h>
+#include <linux/smp_lock.h>
 
 #include <scsi/scsi.h>
 #include <scsi/scsi_ioctl.h>
@@ -834,7 +835,11 @@ static struct bsg_device *bsg_get_device(struct inode *inode, struct file *file)
 
 static int bsg_open(struct inode *inode, struct file *file)
 {
-	struct bsg_device *bd = bsg_get_device(inode, file);
+	struct bsg_device *bd;
+
+	lock_kernel();
+	bd = bsg_get_device(inode, file);
+	unlock_kernel();
 
 	if (IS_ERR(bd))
 		return PTR_ERR(bd);
-- 
2.41.1