diff options
| author | Jiri Slaby <jslaby@suse.cz> | 2013-01-03 15:53:06 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-01-16 07:30:15 +0100 |
| commit | 2e124b4a390ca85325fae75764bef92f0547fa25 (patch) | |
| tree | 5519fbcdbe954e79b271ea6d31ac5a4dc754c4f5 /drivers/usb/serial/sierra.c | |
| parent | TTY: move low_latency to tty_port (diff) | |
| download | linux-2e124b4a390ca85325fae75764bef92f0547fa25.tar.xz linux-2e124b4a390ca85325fae75764bef92f0547fa25.zip | |
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>
Diffstat (limited to 'drivers/usb/serial/sierra.c')
| -rw-r--r-- | drivers/usb/serial/sierra.c | 17 |
1 files changed, 6 insertions, 11 deletions
diff --git a/drivers/usb/serial/sierra.c b/drivers/usb/serial/sierra.c index 64e53fda149b..70aee8d59f23 100644 --- a/drivers/usb/serial/sierra.c +++ b/drivers/usb/serial/sierra.c @@ -569,7 +569,6 @@ static void sierra_indat_callback(struct urb *urb) int err; int endpoint; struct usb_serial_port *port; - struct tty_struct *tty; unsigned char *data = urb->transfer_buffer; int status = urb->status; @@ -581,16 +580,12 @@ static void sierra_indat_callback(struct urb *urb) " endpoint %02x\n", __func__, status, endpoint); } else { if (urb->actual_length) { - tty = tty_port_tty_get(&port->port); - if (tty) { - tty_insert_flip_string(&port->port, data, - urb->actual_length); - tty_flip_buffer_push(tty); - - tty_kref_put(tty); - usb_serial_debug_data(&port->dev, __func__, - urb->actual_length, data); - } + tty_insert_flip_string(&port->port, data, + urb->actual_length); + tty_flip_buffer_push(&port->port); + + usb_serial_debug_data(&port->dev, __func__, + urb->actual_length, data); } else { dev_dbg(&port->dev, "%s: empty read urb" " received\n", __func__); |