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path: root/drivers/char/tb0219.c
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Diffstat (limited to 'drivers/char/tb0219.c')
-rw-r--r--drivers/char/tb0219.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/char/tb0219.c b/drivers/char/tb0219.c
index 4c431cb..6062b62 100644
--- a/drivers/char/tb0219.c
+++ b/drivers/char/tb0219.c
@@ -21,6 +21,7 @@
#include <linux/fs.h>
#include <linux/init.h>
#include <linux/module.h>
+#include <linux/smp_lock.h>
#include <asm/io.h>
#include <asm/reboot.h>
@@ -236,6 +237,7 @@ static int tanbac_tb0219_open(struct inode *inode, struct file *file)
{
unsigned int minor;
+ cycle_kernel_lock();
minor = iminor(inode);
switch (minor) {
case 0:
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