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>
diff --git a/drivers/tty/serial/cpm_uart/cpm_uart_core.c b/drivers/tty/serial/cpm_uart/cpm_uart_core.c
index ad0caf1..42d5eb0 100644
--- a/drivers/tty/serial/cpm_uart/cpm_uart_core.c
+++ b/drivers/tty/serial/cpm_uart/cpm_uart_core.c
@@ -245,7 +245,8 @@
int i;
unsigned char ch;
u8 *cp;
- struct tty_struct *tty = port->state->port.tty;
+ struct tty_port *tport = &port->state->port;
+ struct tty_struct *tty = tport->tty;
struct uart_cpm_port *pinfo = (struct uart_cpm_port *)port;
cbd_t __iomem *bdp;
u16 status;
@@ -276,7 +277,7 @@
/* If we have not enough room in tty flip buffer, then we try
* later, which will be the next rx-interrupt or a timeout
*/
- if(tty_buffer_request_room(tty, i) < i) {
+ if (tty_buffer_request_room(tport, i) < i) {
printk(KERN_WARNING "No room in flip buffer\n");
return;
}