diff options
| author | Jiri Slaby <jslaby@suse.cz> | 2013-01-03 14:53:01 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-01-16 06:17:28 (GMT) |
| commit | 227434f8986c3827a1faedd1feb437acd6285315 (patch) | |
| tree | e96f6c6a800b81d096be73c1b7943c7aa24aa632 /drivers/isdn/i4l/isdn_tty.c | |
| parent | ea28fd56fcde69af768135e428093f94c5ca6a88 (diff) | |
| download | linux-227434f8986c3827a1faedd1feb437acd6285315.tar.xz | |
TTY: switch tty_buffer_request_room to tty_port
Now, we start converting tty buffer functions to actually use
tty_port. This will allow us to get rid of the need of tty pointer in
many call sites. Only tty_port will be needed and hence no more
tty_port_tty_get calls in those paths.
Here we start with tty_buffer_request_room.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/isdn/i4l/isdn_tty.c')
| -rw-r--r-- | drivers/isdn/i4l/isdn_tty.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/drivers/isdn/i4l/isdn_tty.c b/drivers/isdn/i4l/isdn_tty.c index e09dc8a..4f5bcee 100644 --- a/drivers/isdn/i4l/isdn_tty.c +++ b/drivers/isdn/i4l/isdn_tty.c @@ -60,6 +60,7 @@ static int si2bit[8] = static int isdn_tty_try_read(modem_info *info, struct sk_buff *skb) { + struct tty_port *port = &info->port; int c; int len; struct tty_struct *tty; @@ -68,7 +69,7 @@ isdn_tty_try_read(modem_info *info, struct sk_buff *skb) if (!info->online) return 0; - tty = info->port.tty; + tty = port->tty; if (!tty) return 0; @@ -81,7 +82,7 @@ isdn_tty_try_read(modem_info *info, struct sk_buff *skb) #endif ; - c = tty_buffer_request_room(tty, len); + c = tty_buffer_request_room(port, len); if (c < len) return 0; @@ -2230,6 +2231,7 @@ void isdn_tty_at_cout(char *msg, modem_info *info) { struct tty_struct *tty; + struct tty_port *port = &info->port; atemu *m = &info->emu; char *p; char c; @@ -2246,15 +2248,15 @@ isdn_tty_at_cout(char *msg, modem_info *info) l = strlen(msg); spin_lock_irqsave(&info->readlock, flags); - tty = info->port.tty; - if ((info->port.flags & ASYNC_CLOSING) || (!tty)) { + tty = port->tty; + if ((port->flags & ASYNC_CLOSING) || (!tty)) { spin_unlock_irqrestore(&info->readlock, flags); return; } /* use queue instead of direct, if online and */ /* data is in queue or buffer is full */ - if (info->online && ((tty_buffer_request_room(tty, l) < l) || + if (info->online && ((tty_buffer_request_room(port, l) < l) || !skb_queue_empty(&dev->drv[info->isdn_driver]->rpqueue[info->isdn_channel]))) { skb = alloc_skb(l, GFP_ATOMIC); if (!skb) { |