1 files changed, 3 insertions, 0 deletions

diff --git a/arch/cris/arch-v10/drivers/gpio.c b/arch/cris/arch-v10/drivers/gpio.c
index 68a998bd1069..86048e697eb5 100644
--- a/arch/cris/arch-v10/drivers/gpio.c
+++ b/arch/cris/arch-v10/drivers/gpio.c
@@ -16,6 +16,7 @@
 #include <linux/errno.h>
 #include <linux/kernel.h>
 #include <linux/fs.h>
+#include <linux/smp_lock.h>
 #include <linux/string.h>
 #include <linux/poll.h>
 #include <linux/init.h>
@@ -323,6 +324,7 @@ gpio_open(struct inode *inode, struct file *filp)
         if (!priv)
                 return -ENOMEM;
 
+        lock_kernel();
         priv->minor = p;
 
         /* initialize the io/alarm struct */
@@ -357,6 +359,7 @@ gpio_open(struct inode *inode, struct file *filp)
         alarmlist = priv;
         spin_unlock_irqrestore(&gpio_lock, flags);
 
+        unlock_kernel();
         return 0;
 }