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/cpm_uart/cpm_uart_core.c b/drivers/tty/serial/cpm_uart/cpm_uart_core.c
index 0bb24378a3c0..97f4e1858649 100644
--- a/drivers/tty/serial/cpm_uart/cpm_uart_core.c
+++ b/drivers/tty/serial/cpm_uart/cpm_uart_core.c
@@ -246,7 +246,6 @@ static void cpm_uart_int_rx(struct uart_port *port)
         unsigned char ch;
         u8 *cp;
         struct tty_port *tport = &port->state->port;
-        struct tty_struct *tty = tport->tty;
         struct uart_cpm_port *pinfo = (struct uart_cpm_port *)port;
         cbd_t __iomem *bdp;
         u16 status;
@@ -323,7 +322,7 @@ static void cpm_uart_int_rx(struct uart_port *port)
         pinfo->rx_cur = bdp;
 
         /* activate BH processing */
-        tty_flip_buffer_push(tty);
+        tty_flip_buffer_push(tport);
 
         return;