TTY: switch tty_flip_buffer_push

Now, we start converting tty buffer functions to actually use
tty_port. This will allow us to get rid of the need of tty in many
call sites. Only tty_port will needed and hence no more
tty_port_tty_get in those paths.

Now, the one where most of tty_port_tty_get gets removed:
tty_flip_buffer_push.

IOW we also closed all the races in drivers not using tty_port_tty_get
at all yet.

Also we move tty_flip_buffer_push declaration from include/linux/tty.h
to include/linux/tty_flip.h to all others while we are changing it
anyway.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 1 insertions, 2 deletions

diff --git a/drivers/tty/serial/samsung.c b/drivers/tty/serial/samsung.c
index 0684529eb2ad..3aa3c4c83f8b 100644
--- a/drivers/tty/serial/samsung.c
+++ b/drivers/tty/serial/samsung.c
@@ -220,7 +220,6 @@ s3c24xx_serial_rx_chars(int irq, void *dev_id)
 {
         struct s3c24xx_uart_port *ourport = dev_id;
         struct uart_port *port = &ourport->port;
-        struct tty_struct *tty = port->state->port.tty;
         unsigned int ufcon, ch, flag, ufstat, uerstat;
         unsigned long flags;
         int max_count = 64;
@@ -298,7 +297,7 @@ s3c24xx_serial_rx_chars(int irq, void *dev_id)
  ignore_char:
                 continue;
         }
-        tty_flip_buffer_push(tty);
+        tty_flip_buffer_push(&port->state->port);
 
  out:
         spin_unlock_irqrestore(&port->lock, flags);