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/usb/serial/symbolserial.c b/drivers/usb/serial/symbolserial.c
index 2ffa6ae..be05e6c 100644
--- a/drivers/usb/serial/symbolserial.c
+++ b/drivers/usb/serial/symbolserial.c
@@ -48,7 +48,6 @@
unsigned char *data = urb->transfer_buffer;
struct usb_serial_port *port = priv->port;
int status = urb->status;
- struct tty_struct *tty;
int result;
int data_length;
@@ -82,13 +81,8 @@
* we pretty much just ignore the size and send everything
* else to the tty layer.
*/
- tty = tty_port_tty_get(&port->port);
- if (tty) {
- tty_insert_flip_string(&port->port, &data[1],
- data_length);
- tty_flip_buffer_push(tty);
- tty_kref_put(tty);
- }
+ tty_insert_flip_string(&port->port, &data[1], data_length);
+ tty_flip_buffer_push(&port->port);
} else {
dev_dbg(&priv->udev->dev,
"Improper amount of data received from the device, "