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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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5
drivers/tty/serial/ucc_uart.c
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@@ -469,7 +469,8 @@ static void qe_uart_int_rx(struct uart_qe_port *qe_port)
int i;
unsigned char ch, *cp;
struct uart_port *port = &qe_port->port;
struct tty_struct *tty = port->state->port.tty;
struct tty_port *tport = &port->state->port;
struct tty_struct *tty = tport->tty;
struct qe_bd *bdp;
u16 status;
unsigned int flg;
@@ -491,7 +492,7 @@ static void qe_uart_int_rx(struct uart_qe_port *qe_port)
/* If we don't have enough room in RX buffer for the entire BD,
* then we try later, which will be the next RX interrupt.
*/
if (tty_buffer_request_room(tty, i) < i) {
if (tty_buffer_request_room(tport, i) < i) {
dev_dbg(port->dev, "ucc-uart: no room in RX buffer\n");
return;
}