diff options
| author | Jiri Slaby <jslaby@suse.cz> | 2013-01-03 15:53:06 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-01-15 22:30:15 -0800 |
| commit | 2e124b4a390ca85325fae75764bef92f0547fa25 (patch) | |
| tree | 5519fbcdbe954e79b271ea6d31ac5a4dc754c4f5 /drivers/net/usb | |
| parent | d6c53c0e9bd0a83f9f9ddbc9fd80141a54d83896 (diff) | |
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/net/usb')
| -rw-r--r-- | drivers/net/usb/hso.c | 31 |
1 files changed, 15 insertions, 16 deletions
diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c index d235ca07548..f902a14da88 100644 --- a/drivers/net/usb/hso.c +++ b/drivers/net/usb/hso.c @@ -2035,24 +2035,23 @@ static int put_rxbuf_data(struct urb *urb, struct hso_serial *serial) tty = tty_port_tty_get(&serial->port); /* Push data to tty */ - if (tty) { - write_length_remaining = urb->actual_length - - serial->curr_rx_urb_offset; - D1("data to push to tty"); - while (write_length_remaining) { - if (test_bit(TTY_THROTTLED, &tty->flags)) { - tty_kref_put(tty); - return -1; - } - curr_write_len = tty_insert_flip_string(&serial->port, - urb->transfer_buffer + serial->curr_rx_urb_offset, - write_length_remaining); - serial->curr_rx_urb_offset += curr_write_len; - write_length_remaining -= curr_write_len; - tty_flip_buffer_push(tty); + write_length_remaining = urb->actual_length - + serial->curr_rx_urb_offset; + D1("data to push to tty"); + while (write_length_remaining) { + if (tty && test_bit(TTY_THROTTLED, &tty->flags)) { + tty_kref_put(tty); + return -1; } - tty_kref_put(tty); + curr_write_len = tty_insert_flip_string(&serial->port, + urb->transfer_buffer + serial->curr_rx_urb_offset, + write_length_remaining); + serial->curr_rx_urb_offset += curr_write_len; + write_length_remaining -= curr_write_len; + tty_flip_buffer_push(&serial->port); } + tty_kref_put(tty); + if (write_length_remaining == 0) { serial->curr_rx_urb_offset = 0; serial->rx_urb_filled[hso_urb_to_index(serial, urb)] = 0; |