1 files changed, 2 insertions, 3 deletions

diff --git a/drivers/char/pty.c b/drivers/char/pty.c
index da32889d22c0..49f3997fd251 100644
--- a/drivers/char/pty.c
+++ b/drivers/char/pty.c
@@ -149,15 +149,14 @@ static int pty_write_room(struct tty_struct *tty)
 static int pty_chars_in_buffer(struct tty_struct *tty)
 {
         struct tty_struct *to = tty->link;
-        ssize_t (*chars_in_buffer)(struct tty_struct *);
         int count;
 
         /* We should get the line discipline lock for "tty->link" */
-        if (!to || !(chars_in_buffer = to->ldisc.chars_in_buffer))
+        if (!to || !to->ldisc.chars_in_buffer)
                 return 0;
 
         /* The ldisc must report 0 if no characters available to be read */
-        count = chars_in_buffer(to);
+        count = to->ldisc.chars_in_buffer(to);
 
         if (tty->driver->subtype == PTY_TYPE_SLAVE) return count;