[TTY]: Use tty_mode_ioctl() in network drivers.

We conciously make a change here - we permit mode and speed setting to
be done in things like SLIP mode. There isn't actually a technical
reason to disallow this. It's usually a silly thing to do but we can
do it and soemone might wish to do so.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 7 deletions

diff --git a/drivers/net/ppp_async.c b/drivers/net/ppp_async.c
index 27f5b904f48e..8d278c87ba48 100644
--- a/drivers/net/ppp_async.c
+++ b/drivers/net/ppp_async.c
@@ -309,16 +309,11 @@ ppp_asynctty_ioctl(struct tty_struct *tty, struct file *file,
                 err = 0;
                 break;
 
-        case TCGETS:
-        case TCGETA:
-                err = n_tty_ioctl(tty, file, cmd, arg);
-                break;
-
         case TCFLSH:
                 /* flush our buffers and the serial port's buffer */
                 if (arg == TCIOFLUSH || arg == TCOFLUSH)
                         ppp_async_flush_output(ap);
-                err = n_tty_ioctl(tty, file, cmd, arg);
+                err = tty_perform_flush(tty, arg);
                 break;
 
         case FIONREAD:
@@ -329,7 +324,8 @@ ppp_asynctty_ioctl(struct tty_struct *tty, struct file *file,
                 break;
 
         default:
-                err = -ENOIOCTLCMD;
+                /* Try the various mode ioctls */
+                err = tty_mode_ioctl(tty, file, cmd, arg);
         }
 
         ap_put(ap);