From 52e7c5e08201e20ddbe93cb1977869c38072bc2f Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Tue, 20 May 2008 19:15:36 +0200
Subject: [PATCH] basler-excite: BKL pushdown

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/mips/basler/excite/excite_iodev.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/arch/mips/basler/excite/excite_iodev.c b/arch/mips/basler/excite/excite_iodev.c
index 476d20e08d..a1e3526b4a 100644
--- a/arch/mips/basler/excite/excite_iodev.c
+++ b/arch/mips/basler/excite/excite_iodev.c
@@ -26,6 +26,7 @@
 #include <linux/interrupt.h>
 #include <linux/platform_device.h>
 #include <linux/miscdevice.h>
+#include <linux/smp_lock.h>
 
 #include "excite_iodev.h"
 
@@ -110,8 +111,14 @@ static int __exit iodev_remove(struct device *dev)
 
 static int iodev_open(struct inode *i, struct file *f)
 {
-	return request_irq(iodev_irq, iodev_irqhdl, IRQF_DISABLED,
+	int ret;
+
+	lock_kernel();
+	ret = request_irq(iodev_irq, iodev_irqhdl, IRQF_DISABLED,
 			   iodev_name, &miscdev);
+	unlock_kernel();
+
+	return ret;
 }
 
 static int iodev_release(struct inode *i, struct file *f)
-- 
2.39.5