diff --git a/drivers/serial/serial_core.c b/drivers/serial/serial_core.c
index efef494..0f5a179 100644
--- a/drivers/serial/serial_core.c
+++ b/drivers/serial/serial_core.c
@@ -1553,8 +1553,8 @@
 }
 
 /*
- * In 2.4.5, calls to uart_open are serialised by the BKL in
- *   linux/fs/devices.c:chrdev_open()
+ * calls to uart_open are serialised by the BKL in
+ *   fs/char_dev.c:chrdev_open()
  * Note that if this fails, then uart_close() _will_ be called.
  *
  * In time, we want to scrap the "opening nonpresent ports"
diff --git a/fs/char_dev.c b/fs/char_dev.c
index 2c7a8b5..038674a 100644
--- a/fs/char_dev.c
+++ b/fs/char_dev.c
@@ -357,7 +357,7 @@
 /*
  * Called every time a character special file is opened
  */
-int chrdev_open(struct inode * inode, struct file * filp)
+static int chrdev_open(struct inode *inode, struct file *filp)
 {
 	struct cdev *p;
 	struct cdev *new = NULL;
diff --git a/include/linux/fs.h b/include/linux/fs.h
index cb3a900..18cfbf7 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1624,7 +1624,6 @@
 			   const struct file_operations *);
 extern void unregister_chrdev(unsigned int, const char *);
 extern void unregister_chrdev_region(dev_t, unsigned);
-extern int chrdev_open(struct inode *, struct file *);
 extern void chrdev_show(struct seq_file *,off_t);
 
 /* fs/block_dev.c */