#include <linux/module.h>
#include <linux/poll.h>
-#include <linux/smp_lock.h>
#ifdef CONFIG_PROC_FS
#include <linux/proc_fs.h>
#else
#ifdef CONFIG_PROC_FS
-static struct file_operations isdn_fops =
+static const struct file_operations isdn_fops =
{
.owner = THIS_MODULE,
.llseek = no_llseek,