From: Arnd Bergmann <arnd@arndb.de>
Date: Tue, 20 May 2008 17:16:59 +0000 (+0200)
Subject: vmcp: BKL pushdown
X-Git-Tag: v2.6.27-rc1~1103^2~17
X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=6c111d886317513605c459cbe8d1970fab732c90;p=linux-2.6-omap-h63xx.git

vmcp: BKL pushdown

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---

diff --git a/drivers/s390/char/vmcp.c b/drivers/s390/char/vmcp.c
index 2f419b0ea62..bf3dc6e0e33 100644
--- a/drivers/s390/char/vmcp.c
+++ b/drivers/s390/char/vmcp.c
@@ -16,6 +16,7 @@
 #include <linux/kernel.h>
 #include <linux/miscdevice.h>
 #include <linux/module.h>
+#include <linux/smp_lock.h>
 #include <asm/cpcmd.h>
 #include <asm/debug.h>
 #include <asm/uaccess.h>
@@ -39,11 +40,14 @@ static int vmcp_open(struct inode *inode, struct file *file)
 	session = kmalloc(sizeof(*session), GFP_KERNEL);
 	if (!session)
 		return -ENOMEM;
+
+	lock_kernel();
 	session->bufsize = PAGE_SIZE;
 	session->response = NULL;
 	session->resp_size = 0;
 	mutex_init(&session->mutex);
 	file->private_data = session;
+	unlock_kernel();
 	return nonseekable_open(inode, file);
 }