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TTY: switch tty_buffer_request_room to tty_port

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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>
This commit is contained in:
Jiri Slaby
2013-01-03 15:53:01 +01:00
committed by Greg Kroah-Hartman
parent ea28fd56fc
commit 227434f898
21 changed files with 60 additions and 43 deletions
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6
drivers/tty/serial/jsm/jsm_tty.c
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@@ -521,6 +521,7 @@ void jsm_input(struct jsm_channel *ch)
{
struct jsm_board *bd;
struct tty_struct *tp;
struct tty_port *port;
u32 rmask;
u16 head;
u16 tail;
@@ -536,7 +537,8 @@ void jsm_input(struct jsm_channel *ch)
if (!ch)
return;
tp = ch->uart_port.state->port.tty;
port = &ch->uart_port.state->port;
tp = port->tty;
bd = ch->ch_bd;
if(!bd)
@@ -600,7 +602,7 @@ void jsm_input(struct jsm_channel *ch)
return;
}
len = tty_buffer_request_room(tp, data_len);
len = tty_buffer_request_room(port, data_len);
n = len;
/*