From 2861ead38b8a376888c3f63b9c8e45d4cee02117 Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Tue, 20 May 2008 19:15:33 +0200
Subject: [PATCH] apm-emulation: BKL pushdown
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
drivers/char/apm-emulation.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/char/apm-emulation.c b/drivers/char/apm-emulation.c
index cdd876dbb2b0..da8a1658a273 100644
--- a/drivers/char/apm-emulation.c
+++ b/drivers/char/apm-emulation.c
@@ -13,6 +13,7 @@
#include <linux/module.h>
#include <linux/poll.h>
#include <linux/slab.h>
+#include <linux/smp_lock.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/miscdevice.h>
@@ -416,6 +417,7 @@ static int apm_open(struct inode * inode, struct file * filp)
{
struct apm_user *as;
+ lock_kernel();
as = kzalloc(sizeof(*as), GFP_KERNEL);
if (as) {
/*
@@ -435,6 +437,7 @@ static int apm_open(struct inode * inode, struct file * filp)
filp->private_data = as;
}
+ unlock_kernel();
return as ? 0 : -ENOMEM;
}