From 1d17bf0c08569e7aefd27df0179065fb955588c4 Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Tue, 20 May 2008 19:15:53 +0200
Subject: [PATCH] envctrl: BKL pushdown

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 drivers/sbus/char/envctrl.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/sbus/char/envctrl.c b/drivers/sbus/char/envctrl.c
index dadabef116b..a408402426f 100644
--- a/drivers/sbus/char/envctrl.c
+++ b/drivers/sbus/char/envctrl.c
@@ -27,6 +27,7 @@
 #include <linux/miscdevice.h>
 #include <linux/kmod.h>
 #include <linux/reboot.h>
+#include <linux/smp_lock.h>
 
 #include <asm/ebus.h>
 #include <asm/uaccess.h>
@@ -694,6 +695,7 @@ envctrl_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 static int
 envctrl_open(struct inode *inode, struct file *file)
 {
+	cycle_kernel_lock();
 	file->private_data = NULL;
 	return 0;
 }
-- 
2.41.1