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>
diff --git a/drivers/tty/serial/serial_txx9.c b/drivers/tty/serial/serial_txx9.c
index b52b21a..fe48a0c 100644
--- a/drivers/tty/serial/serial_txx9.c
+++ b/drivers/tty/serial/serial_txx9.c
@@ -277,7 +277,6 @@
static inline void
receive_chars(struct uart_txx9_port *up, unsigned int *status)
{
- struct tty_struct *tty = up->port.state->port.tty;
unsigned char ch;
unsigned int disr = *status;
int max_count = 256;
@@ -346,7 +345,7 @@
disr = sio_in(up, TXX9_SIDISR);
} while (!(disr & TXX9_SIDISR_UVALID) && (max_count-- > 0));
spin_unlock(&up->port.lock);
- tty_flip_buffer_push(tty);
+ tty_flip_buffer_push(&up->port.state->port);
spin_lock(&up->port.lock);
*status = disr;
}