1 files changed, 8 insertions, 11 deletions

diff --git a/drivers/sbus/char/uctrl.c b/drivers/sbus/char/uctrl.c
index 383f32c1d347..777637594acd 100644
--- a/drivers/sbus/char/uctrl.c
+++ b/drivers/sbus/char/uctrl.c
@@ -9,6 +9,7 @@
 #include <linux/delay.h>
 #include <linux/interrupt.h>
 #include <linux/slab.h>
+#include <linux/smp_lock.h>
 #include <linux/ioport.h>
 #include <linux/init.h>
 #include <linux/miscdevice.h>
@@ -194,8 +195,8 @@ struct uctrl_driver {
 
 static struct uctrl_driver drv;
 
-void uctrl_get_event_status(void);
-void uctrl_get_external_status(void);
+static void uctrl_get_event_status(void);
+static void uctrl_get_external_status(void);
 
 static int
 uctrl_ioctl(struct inode *inode, struct file *file,
@@ -211,8 +212,10 @@ uctrl_ioctl(struct inode *inode, struct file *file,
 static int
 uctrl_open(struct inode *inode, struct file *file)
 {
+        lock_kernel();
         uctrl_get_event_status();
         uctrl_get_external_status();
+        unlock_kernel();
         return 0;
 }
 
@@ -263,12 +266,6 @@ static struct miscdevice uctrl_dev = {
   driver->regs->uctrl_stat = UCTRL_STAT_RXNE_STA; \
 }
 
-void uctrl_set_video(int status)
-{
-        struct uctrl_driver *driver = &drv;
-        
-}
-
 static void uctrl_do_txn(struct uctrl_txn *txn)
 {
         struct uctrl_driver *driver = &drv;
@@ -308,7 +305,7 @@ static void uctrl_do_txn(struct uctrl_txn *txn)
         }
 }
 
-void uctrl_get_event_status(void)
+static void uctrl_get_event_status(void)
 {
         struct uctrl_driver *driver = &drv;
         struct uctrl_txn txn;
@@ -328,7 +325,7 @@ void uctrl_get_event_status(void)
         dprintk(("ev is %x\n", driver->status.event_status));
 }
 
-void uctrl_get_external_status(void)
+static void uctrl_get_external_status(void)
 {
         struct uctrl_driver *driver = &drv;
         struct uctrl_txn txn;
@@ -360,7 +357,7 @@ void uctrl_get_external_status(void)
 static int __init ts102_uctrl_init(void)
 {
         struct uctrl_driver *driver = &drv;
-        int len, i;
+        int len;
         struct linux_prom_irqs tmp_irq[2];
         unsigned int vaddr[2] = { 0, 0 };
         int tmpnode, uctrlnode = prom_getchild(prom_root_node);