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Commit 736c9fd2 authored by Martin Schwidefsky's avatar Martin Schwidefsky
Browse files

s390/3270: readd tty3270_open 



Reintroduce the tty3270_open function which has been removed by
git commit 20cda6f2 "TTY: tty3270, add tty install". Without
the open function in the tty_operations tty_open will return
-ENODEV and the 3270 tty will not work.

Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
parent 7292e7e0

drivers/s390/char/tty3270.c

+15 −0
Original line number Diff line number Diff line
@@ -925,6 +925,20 @@ static int tty3270_install(struct tty_driver *driver, struct tty_struct *tty) 
	return 0;

}



/*

 * This routine is called whenever a 3270 tty is opened.

 */

static int

tty3270_open(struct tty_struct *tty, struct file *filp)

{

	struct tty3270 *tp = tty->driver_data;

	struct tty_port *port = &tp->port;



	port->count++;

	tty_port_tty_set(port, tty);

	return 0;

}



/*

 * This routine is called when the 3270 tty is closed. We wait

 * for the remaining request to be completed. Then we clean up.
@@ -1753,6 +1767,7 @@ static long tty3270_compat_ioctl(struct tty_struct *tty, 
static const struct tty_operations tty3270_ops = {

	.install = tty3270_install,

	.cleanup = tty3270_cleanup,

	.open = tty3270_open,

	.close = tty3270_close,

	.write = tty3270_write,

	.put_char = tty3270_put_char,