1 files changed, 11 insertions, 1 deletions

diff --git a/drivers/char/synclinkmp.c b/drivers/char/synclinkmp.c
index e98c3e6f821..b716a73a236 100644
--- a/drivers/char/synclinkmp.c
+++ b/drivers/char/synclinkmp.c
@@ -1303,7 +1303,7 @@ static void tx_release(struct tty_struct *tty)
  *
  * Return Value:        0 if success, otherwise error code
  */
-static int ioctl(struct tty_struct *tty, struct file *file,
+static int do_ioctl(struct tty_struct *tty, struct file *file,
                  unsigned int cmd, unsigned long arg)
 {
         SLMP_INFO *info = (SLMP_INFO *)tty->driver_data;
@@ -1393,6 +1393,16 @@ static int ioctl(struct tty_struct *tty, struct file *file,
         return 0;
 }
 
+static int ioctl(struct tty_struct *tty, struct file *file,
+                 unsigned int cmd, unsigned long arg)
+{
+        int ret;
+        lock_kernel();
+        ret = do_ioctl(tty, file, cmd, arg);
+        unlock_kernel();
+        return ret;
+}
+
 /*
  * /proc fs routines....
  */