From 77149367dade50af8370420265bd4f818cde8afd Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Tue, 20 May 2008 19:16:16 +0200
Subject: microcode: BKL pushdown

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/x86/kernel/microcode.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/x86/kernel/microcode.c b/arch/x86/kernel/microcode.c
index 69729e38b78..9f0a994eef9 100644
--- a/arch/x86/kernel/microcode.c
+++ b/arch/x86/kernel/microcode.c
@@ -75,6 +75,7 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/sched.h>
+#include <linux/smp_lock.h>
 #include <linux/cpumask.h>
 #include <linux/module.h>
 #include <linux/slab.h>
@@ -422,6 +423,7 @@ out:
 
 static int microcode_open (struct inode *unused1, struct file *unused2)
 {
+	cycle_kernel_lock();
 	return capable(CAP_SYS_RAWIO) ? 0 : -EPERM;
 }
 
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