microcode: BKL pushdown

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
git-mirror · Jun 20, 2008 · 7714936 · 7714936
1 parent b78032a
commit 7714936
Showing 1 changed file with 2 additions and 0 deletions.
diff --git 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 @@ static int do_microcode_update (void)
 
 static int microcode_open (struct inode *unused1, struct file *unused2)
 {
+	cycle_kernel_lock();
 	return capable(CAP_SYS_RAWIO) ? 0 : -EPERM;
 }