n_tty: Remove stale read lock comment

The stale comment refers to lock behavior which was eliminated in
commit 6d76bd2618535c581f1673047b8341fd291abc67,
n_tty: Make N_TTY ldisc receive path lockless.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 0 insertions, 2 deletions

diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index 6dcaa5294f1e..0cb0e12f87c7 100644
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -2248,8 +2248,6 @@ static ssize_t n_tty_read(struct tty_struct *tty, struct file *file,
                                 nr--;
                         }
 
-                        /* The copy function takes the read lock and handles
-                           locking internally for this case */
                         uncopied = copy_from_read_buf(tty, &b, &nr);
                         uncopied += copy_from_read_buf(tty, &b, &nr);
                         if (uncopied) {